10 of the best camping apps! And lots of other top 10 camping lists (activities, food, organizing, etc) *even though I'm not a fan of using my phone for anything other than pictures or emergencies these apps are pretty cool*
DIY Marbled Glassware - Drip various colors of nail polish into a disposable container of water, layering the colors. Use toothpick to pull the polish and create a swirly pattern. Submerge the bottom of the glass into the polish. Cover with clear polish.
Original suggestion is "nail polish + recycled lightbulbs for garden art." I think they'd make cute Christmas ornaments, and there has to be better paint and glazes than nail polish, with its tiny brushes.