I promised myself I wasn’t going to buy art supplies as a gift this year, I have way too many but... I really want paint pigments to make my own watercolors and acrylics. Just the thought of knowing I can make my own stuff like that is neat. It’s like how I learned to card and dye my own wool. I want to sit down and actually start needlefelting, maybe try to spin my own yarn.
And then there’s a kit online I like called Aromastone, you cast plaster into a cute shape, than you add a scented oil to it and hang it in a closet or put it in a dish. I could probably make it myself if I use my soap molds and the plaster I already have, I think a gemstone diffuser would be cool and it fits my room aesthetic.