Faerie Garden in a lantern! I have one, though I'd love to get my hands on a little faerie figure like this one! I have a battery operated tealight in my lantern, but I like the plant idea. Maybe succulents.
No helium needed to fill balloons for parties.just vinegar and baking soda! I NEED TO REMEMBER THIS! this is important since helium is not a renewable source and is in such short supply-kid science project