Plastic cup greenhouses are perfect for planting with kids! An excellent Earth Day activity.
Snowman out of plastic cups.
18 fun things to do with plastic cups--games, activities and crafts to keep the kids busy this summer! I love the pass the water game!
Plastic cups can be used for all kinds of fun, including stacking games.
vegetables and dip in individual plastic cups http://samscutlerydepot.com/product/238-195-masahiro-work-mv-mouthpiece-hiroshi-knife-240mm-13721-4457ai/
Dragon Puppet! Great for Chinese New Year, or anytime! Adapted from: http://www.sunscholars.com/2011/09/flying-dragon-puppet.html AND face from: http://crafts.kaboose.com/chdragoneasy.html
recycled plastic cup light:)
I could totally make this with plastic cups and a drop cloth
Plastic cups lamp