Make A Cheap & Easy Solar USB Charger With An Altoids Tin : TreeHugger
Altoids aren't vegan, but Trader Joe's sells a knockoff type that has a similar sort of tin. It may work?
Buying in bulk and selling them for cheap might be nice, or they'd make good gifts for eco-minded friends.
I picked up a bunch of dried bamboo today and I'll be going back to get more. I hope I manage to complete projects with these a little faster than those pallets I picked up 9 months ago that are still sitting in my driveway. Le sigh.
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