Prior to the release of Synkronized back in June 1999 (yup, over 8 years ago!), the Sony S2 record label gave away a number of promotional Jamiroquai frisbee's, which when thrown spell out the word Synkronized!

I don't think many of these were made, and one has just appeared on auction site eBay.  The best thing about this auction (apart from the frisbee itself) is that the auction has been created to raise money for the Cancer Research UK charity.