Sagat, Blanka, Zangief and Balrog/Mike Bison found at Flickr.
They look like they're part of this set:
Ken, Akuma, and two other guys on sale at eBay.
Believe it or not, I found even uglier Street Fighter toys at eBay:
On sale right now, with a starting bid of 99 cents.
I did find some cool-looking Street Fighter toys, including this stylish Blanka, this adorable Balrog, and these action figures by SOTA toys.
*Previously: Charmingly repulsive counterfeit Hulk action figure.