DIY Plastic Bottle Recycling: Starting/Planting garden plants in milk jugs; Most Intriguing -- the milk jug igloo -- on a raised base with the entrance on the leeward side, this could be a nice place to play even in cooler weather.
Create your own dip dyed shoes. You don't have to particularly use yellow dip-dye. I've tried this myself, and I dip-dyed my shoes blue and green instead. It really works! Make sure you have white shoes only, or else it won't work.