If I had to choose from the provided list: A.

If I had the cold hard cash: I'm doing the practical thing. Pay down the mortgage, invest the $, use it as a down payment on a new car...

Oh, wait, this is an escapist thread. Ok then: Some pretty jewelry, and a shopping spree at Chico's :D

My diamonds would be the Canadian-conflict free kind. (yes, I know...how convenient....LOL) As for the mink coat, even if it was faux-mink, where I live, the winters are not that cold as to need to wear fur, plus I've always thought that fur coats look a bit pimp'y/prostitute'y in a way.

You said frivolty (sp?)
 

$10,000 is not enough for me to buy a quality Argyle Pink in a princess cut Flawless with encryption codes--in Platinum/Palladium Rose gold setting...

Rather than a spa vacation, I would get plastic surgery with lipo and laser... An a day in honeymoon sweet in the Bellagio/Venetian.

or

$10,000--I get a 72" flatscreen HDTV... or maybe an iPhone with a good service contract.

or

Fan club seats at the ESPN Box seats at either the BCS or the Superbowl...

Who doesn't love a chanel suit????:D