Glow in the dark bubbles - open glow sticks & pour them into bubble solution. Link says it's hard to see glowing bubble. but it's worth a shot since they were using a glowing bubble solution not a glow stick.
How to make a ribbon chandelier! (Hula hoop & ribbon) party decor or in a kids room! Or make a huge one from a hoola-hoop and keep it hung from a tree or patio area for the kids to enjoy and play with --
Make your own DIY overhead projector for tracing wall murals. Make a makeshift projector using a box, a lamp and some tape. Project the transparency onto the wall. Use a light bulb without the "frosting" on the inside for a clearer picture.