This is my favorite online art supply store. I particularly like Stabilo, Staedtler, and Caran d'Ache.

https://www.dickblick.com

Not sure if this is what you have in mind, but my grandson loves using these:

More information about where she is in terms of talent, experience or training and about what kind of work she wants to do would be helpful. Fancy materials could be a waste of money or even counter-productive if they are the right things for what she wants to do and her ability to use them to get there. Has she done more than coloring books and doodles? What has she expressed an interest in?

Back in the day Grandma gave my tween a case of the hugely popular "gel pens". The pink pen ended up leaking all over the new light carpet...oh what a mess. Grandma be ware!!

Gel pens, that's what I gave her. She's drawn mostly in advanced coloring books and my adult coloring books. I have one on folk art cats and she loved how the colors were used. I've never seen her draw anything that shows real talent, but hey, you never know, she still shows an interest & that's all that matters! Her dad can draw, maybe she has his talent?

I took private art classes using pastel chalk and charcoal, so I think I get her some of those along with the oil pens.

Here at the house I keep a good supply of high quality colored pencils for my books she sometimes uses.

Getting the above, different types of paper, erasers, etc, along with a case would be fun. I'm going to search around to see if I can find it all together in a kit. For beginners. ;)

My gifted grandson is 7 and attends the weekend workshops at Columbus College of Art & Design. The instructors recommend a gift card for shopping at Blick. That way he can shop for whatever he needs. Blick has just about everything.

She'd probably like a light mat too, amazon has a wide variety.

'Fancy paper' made me think of pattern edge scissors.

Michael, she's a novice and would have no idea what to buy. Sounds perfect for your grandson!

Bumble, what type of mat are you talking about?

Party, adding a pair of pattern edge scizzors is a great idea.

I found these kits on Amazon but will have to read more about them.

A clipboard is useful too

Good idea, Carol. I did find mats that keeps paper from sliding. I wonder if that's the type of mat Bumble is talking about?

There are drawing pads that draw with light

https://lightdrawingpad.com/products/light-drawing-pad-fun-and-developing-toy?variant=30308965843024&utm_medium

But I took Bumble to be talking about this kind of light mat -- a thinner version of what used to be a light box (LEDS make that possible) used for tracing. Tracing can be a learning tool or a crutch that prevents them from learning -- all depends on how it is used and what is wanted.

https:/amazon.com/Portable-LITENERGY-Artcraft-Sketching-Animation/dp/B07F147VF6/ref=sr_1_8?keywords=light+mat&qid=1573911176&sr=8-8

An upright version -- good for painters or drawers who will use an easel

https://amazon.com/Diamond-Painting-Adjustable-Brightness-Detachable/dp/B07RWD3S5Q

If she is really interested in learning to draw, I would look at some books that teach drawing and pencils and sketch books or pads to go with them. There are books for animals, people, flowers and general ones like this. They will help her see shapes and figure out how to break down the things she wants to draw into something that seems easier and build on that. .

https://www.amazon.com/Drawing-Book-Kids-Things-Activities/dp/0997799374

Another option would be to give her a subscription to Bluprint and let her take classes and watch videos there. They are running a special on the annual membership for the holidays. One plus to Blueprint is that she could get bored with drawing and try some painting -- or crocheting or knitting or embroidery or sewing.... It's all covered by the same membership (her mom could even take a class when she's not watching) and they offer a lot of discounts on materials.

https://www.mybluprint.com/p/gift-bluprint

Copic markers are ones a lot of illustrators use, but I wouldn't buy them for a beginner. There are sets like this one on Amazon for knockoff brands that get good ratings. I'd start there. They are alcohol inks -- like Sharpies, so rather permanent and will dry out if left uncapped. Make sure she's ready to handle them and understands that these are for coloring the designs she draws with pencil -- at least for now. If she gets into the Copic level, they have sketch versions and paint versions.

https://amazon.com/Caliart-Permanent-Highlighters-Illustration-Underlining/dp/B073TWPHQN

If she works on drawing skills, she can take that into anything else she might like to try. If drawing doesn't hold her interest, there are a lot of crafting options she can move into.

You can search Google, Amazon and Pinterest for 9-10 year old art ideas and see if there is something else that looks like her to you. But building skills at this age will be a real plus if she has the desire to learn and the patience for it. Hope that helps.

The art supplies have gotten all the attention here -- but for small gifts for your grandson:

puzzles and riddles:

https://www.amazon.com/Difficult-Riddles-Smart-Kids-Families/dp/1546595902

https://www.amazon.com/National-Geographic-Kids-Why-Everything/dp/1426320965

Games

https://www.amazon.com/Dont-Laugh-Challenge-Interactive-Contest/dp

https://www.amazon.com/Games-25254-Flipslide-Game/dp/B079D7XHSY

https://www.amazon.com/Stomp-Rocket-Extreme-Performance-Rockets/dp/B00297OCZ6 (these last as long as it takes to get stuck in trees, but the kids have a lot of fun with them in the meantime. They last longer if taken to a parking lot)

https://www.amazon.com/Djubi-Classic-Coolest-Twist-Catch/dp/B001L7TIP4

Corny gift a grandma can give (for an 11 yr old boy)

https://www.amazon.com/lauhonmin-Remember-Stronger-Necklace-Stainless/dp/B01M7TVKLP (comes in a clear version too)

Hope that at least gets you started

Oh -- for either of them, because I keep hearing about kids who graduate high school or even college and can't cook anything more than microwave popcorn or maybe ramen (or balance a checkbook, iron a shirt, replace a button, repair a hem, etc.,): tackle one of those:

https://www.amazon.com/Complete-Cookbook-Young-Chefs/dp/1492670022

If you haven't purchased, Dick Blick has their store brand of markers similar to Copic as a Black Friday special. I'm even tempted to try them.

https://www.dickblick.com/products/blick-illustrator-markers-and-sets

Thought I would share this pre-teen to teen to small adult gift DEAL. My 10 yr old Salvation Army angel tree girl asked for a youth size guitar and Karaoke machine. I bought both on Amazon. Right after the purchase the guitar in pink (color I bought) went on sale for an unbelievable $55. The original is going back and I have the sale one coming. That’s how Amazon C.S suggested I do it.

Anyway, this is a very decent starter guitar for almost half of the original price. Its a bit larger than the youth Yamaha so might last her a few more years and have less a chance of getting stolen . There were reviews from actual musicians who use it as a travel guitar. It’s the only color on a discount. Along with the guitar and karaoke machine I bought music books on voice, song books and beginner music reading.

Great deal....

https://www.amazon.com/Oscar-Schmidt-OG1P-Acoustic-Guitar/dp/B078MPQ39J/ref=mp_s_a_1_2?keywords=oscar+schmidt+og1p-a-u+3%2F4+size+acoustic+guitar+-+pink&qid=1575513905&sr=8-2

Did my post disappear?

Edited: okay, now I see it.

Edited again, now it’s gone again. Does anyone see my guitar post?

Seriously, Lascatx! I got a good deal on a set of copic markers-- but still MUCH more than those Blick Markers. Have you used them? I have a niece looking to return to school as a graphic designer so I got her some "tools" for her art.

For our creative preteen we got some Blend and Shade Soft Core Colored Pencils, a Lang Spiral Sketchbook and a set of Blending Stumps etc with a little storage bag. She is always trying to smudge/ shade with her thumb. I think she will love it.