I love growing my own plants, so I will knock on doors and ask people for seeds and cuttings. I've made some great garden friends in the process, one elderly lady who nearly landscaped my whole yard because I offered to help her clear out overgrown yard for the plants. She had some seriously gorgeous large bromeliads that sold for $50 each at the one place you could buy them in the area. I must have gotten $1,000 worth or bromeliads and other plants from her for 8 hours of work. We remained friends and I got even more plants from her in years to come. I also trade plants and seeds with people online and off, and dig up, get seeds from, or take cuttings from beautiful blooming natives from the side of the road. I have no pride when it comes to my garden. LOL Of course, I buy half-dead perennials from Lowe's and WalMart markdown racks and bring them back to live. I also live in an apartment complex and have gotten some plants people left behind or gave to me when they moved. I also used to belong to a community garden and got quite a few free plants and seeds from there. I was just figuring how much I've spent over the past 3 years since I"ve lived in this apartment on plants, and it came out to less than $50 and most of that was fertilizer and potting soil. Speaking of potting soil, Lowe's will sometimes mark down broken bags, because they can't sell them for full price. I got 5 bags of nice, organic soil for 50% off by offering to take the broken bags off their hands for a discount. Same for plants with broken pots. I got a beautiful peach tree once for 1/2 price because the pot had split down the side and wouldn't hold water, so it was drying out and dying. But the best and most treasured seeds and plants I get are from GWers. I have such good friends here who regularly send me plants and seeds for no reason at all except they know I love growing from seed and don't have much of a budget. I always pass the favor forward or send them something I know they are looking for.

art shows, local galleries, thrift stores. sometimes gifts from friends

I know this answer may not be particularly useful, but I buy mine from a nearby (90 mile away in SE Texas) commercial blueberry nursery, they sell a couple of dozen varieties (some test crop varieties not shown in their catalog list) primarily to commercial growers and grow thousands of them per year. Being able to buy 8 blueberry plants in 3 gallon pots that stood about 3 ft tall each for under $60 made the drive to pick them up worth it to me for the first time I went there. https://www.creekwoodfarmstx.com/ p.s. they are along my route for driving to Houston, so I tend to pass by a couple of times per year, and have stopped in and bought a couple of new plants on occasion since.

carolb mentioned paper dolls. Amazon used to have some very nice paper doll books as did the book store. I think that is not a strange gift for a grown woman, especially if she is old enough to have played with paper dolls as a child. I have several on my shelf. Some of them are really spectacular! I think both the coloring book and the paper dolls are both great ideas for that! Amazon or the book store, if you still have one.