Idk if these fit any decor for any of the showers or themes you have going, but i freaking think theyre adorable Twine Lanterns - DIY Garden Lighting Ideas - Sequin Gardens
30 Creative Diy String Art Ideas use rainbow colored strings against black. have the students write five things they want to draw before class. (use as basis of the shape for string art)
Creative DIY Projects: How To Make Pompom Rugs. Or just a nice tutroial to make pompoms from.