Skeuomorph

Skeuomorph is a  new word Ennis taught me today.

It refers to a derivative object which retains ornamental design cues to structure that was necessary in the original.

The wikipedia entry distinguishes skeuomophic features from

path dependent technologies such as the QWERTY keyboard which first appeared on the typewriter in 1873.

I've used a lot of path-dependent technologies today--such as my keypad, and my car.  But skeuomorphic? Surely some coins, but right now I can't think of any others.