A very fine mouse-pad: $10,000. Plus shipping.

Reuben sez, "I went shopping on Amazon.com for a new mouse pad and I could not believe what I found. The answer to all of my portable mousing surface needs is only $9,999.00 plus $6.44 shipping. Too bad I did not get in on this when it only cost $12.99. Now I will have to get another mortgage to afford it."

Belkin F5L008-GRY Mouse Trap Mouse Pad

(Thanks, Reuben!)