Peta.org has a great list of items available commercially that are vegan, whether they were designed that way or not, they are.  
Accidentally Vegan is an informative site with all types of interesting stuff.
Some of the odd ones were Baco's brand bacon bits, Shake and Bake, Manwich sauce and Hershey's Syrup. All vegan. 
Also, you'll all be glad to know that Red Bull is actually vegan.  That puts to rest the rumors that taurine is made from bull semen.