1.- Radio Shack has clearances from time to time
2.- Dumpster diving
3.- Junk yard in your town
4.- Thrift stores
5.- Hobby Stores (Michaels, Hobby Lobby, etc) (Hobby Town, etc)
6.- Hardware store (Lowes, Home Depot, Ace, True Value)
6.- Local electronic stores (Fry's electronics, etc)
7.- Surplus stores
8.- Garage sales
9.- Look in your garage, I'm sure you have a pile of electronics that don't work anymore and they're waiting to be taken apart
10.- Candy Store (buy those chocolates in a nice plastic box
)