Spy Coins
A real cloak-and-dagger offering, these spy coins are virtually indistinguishable from the real thing. Thanks to flash drive technology, they can be used to hide 16 megabytes of digital data. They're made in Missouri and available in a variety of currencies including a Jefferson nickel, a Washington quarter, a 50 cent euro coin or even a Soviet kopek.
Available from Spy Coins for $30.
