Mini Nebula Necklaces: Take cotton and using tweezers, put inside a mini charm bottle. Then add your choice of glitter and a few drops of food coloring, then top off with water. Hot glue the top on and add to your chain!
"custom canvas (using stickers to create background and then spray painting it before removing stickers) awesome, cheap and lovely. I could modify this technique for the kids." This is actually good idea to give as a gift :-)