I borrowed mine from a friend. I would bet that most costume stores would have something like that or could get it if you go early enough. Make sure you get the cane with the snow globe on top, as no self-respecting pimp would be caught without his trusty cane.
You should become a certified pimp. A friend of mine on the tigerband cymbal line has a Certified Pimp Card. It is very nice.
Bengal B, ebay has a bunch for sale. Here's one: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2949385493&category=19255
