Do NOT throw away plastic gears from printers copiers or faxes !!!
There are tons of plastic gears inside of printers, copiers and the like, and they are actually worth money.
A quick Ebay search revealed that plastic gears sell for $0.05 - $0.06 each if sold in lots of 50 or more ( 1 listing had over 1,000 sold lots - another one over 500 - many have over 75 sold lots ) !!!
Looking at the listings, certain gears can sell for even more ! Stepper gears are going for over $0.20 each if sold in lots !
Heck, even plastic "pulleys" are selling !
If you had the time, it would be possible to put together "plastic parts kits" that go for over $20 each
Do NOT throw away plastic gears from printers copiers or faxes !!!
funny, I've always kept these for myself in the event that I'd want to use them for something. I always keep weird stuff like that in my "Backyard Engineering" bucket