Fill them with Halloween candy and have cellophane bags on hand so your friends can take some home for their grandchildren.

You can usually find inexpensive potted mums at that time of year. I'd crinkle up some tissue or other colored paper and put the pot in the pumpkin. Or you can put something else in the pumpkins like candy or fruit like oranges or apples.

Do you have the glass pumpkins already and if so what size are they so we can get a better idea of what can be used in them.

Dried or fake fall leaves, variety of nuts in their shells (either natural or spray painted gold and/or silver for more glam), crinkled up tissue paper with battery operated tiny lights woven in (or with whatever you use). Candy corn (or pumpkin seeds or lentils) with lighted tea lights.

My vote would be to use them as vases too! Get orange mums, fall colored flowers. I think if you have decorative runners you will be fine.

I would do maybe one large floral arrangement for the buffet table. Each card table will have a pumpkin with a low arranged floral treatment, so people can see over it.

Although the candy idea is cute, it reminds me too much of Halloween. Unless, maybe you invest in a special wrapped candy in coordinating colors. Then as, tibbirx said, they can all take some home.

Congratulations on your milestones. You certainly do deserve a party.

This is a real pumpkin but I think the same could be done in the glass ones.

Google harvest centerpieces then click on the images option. I made some really pretty candle holders for the garden club, they are very easy to make. I found it on pinterest.
Pumpkin centerpieces

Candle Holder craft

Mine looked just like these, I got the supplies at hobby lobby. I bought the case of Mason jars there too.

Thanks for the great ideas. I thought about candy but also thought "Halloween". I wondered about the little battery powered string lights but don't know how long those stay lit. For the food tableI have three large metal fall pieces that are a gourd and a pumpkin in green and a pumpkin in orange. They are very nice and I was able to get them really really cheap at a floral design shop that was closing. You have given me alot to think about. Im not sure of the size of the pumpkins but Im sure you have all seen them as they are very common. I would estimate them to be about 10-11 inches tall and kinda fat. How's that for a description.

Hearty congratulations on surviving cancer, retiring, and turning 70! Good for you!!!

I saved this photo seven years ago. It's from the Surroundings web site. I just checked it, and didn't find this again, but it would be easy to recreate. The site referred to it as Fall Cylinders (or is that just what I named the photo???)

We do decorating (150 people) every fall and I find that you can purchase pretty fall prints of fabrics (45" wide, cut neatly in thirds, no hemming required....to make 18 " runners) and put table runners on each table with simple decorations....like the pumpkins, glass or mini real ones with some floral leaves placed on the runners, or candles. Good Luck! And, congratulations from an 80+ year old, so really ENJOY your 70"s!

No ideas just wanted to say Congratulations on all your milestones. And good for you for throwing yourself a party and celebrating.

For the bigger table, you can include real squashes, mini pumpkins (as nanny98 suggested), or gourds with the metal ones down the center. You can intersperse artificial fall leaves, or if you have fall where you are, you can pick dried plants, berries, or rose hips from field or garden (for free!) to arrange around the pumpkins/squashes.

What a lovely idea for a party! Congratulations

I'd like to echo blfenton's sentiments. :) You should be very proud of yourself, Satine and we are all very happy for you! I also want to say I love both of those links you posted and will try to keep them in mind this T-giving.