For sale - three different varieties of Harrah's North Kansas City used room keys as pictured below (I know of six different variations of this key - this auction has three of those). The group of three for $7.50 postpaid in the U.S. (add 50 cents for international shipping).

In case you can't make out the markings in the scan, they are:

-CPICA 22706
-CPICA 12/00
-CPICA 10/00

If you're interested, hang a sign and I'll contact you with payment information. Thanks! Jim