Bee Stingers in multiple colors would be great, but I don't see anyone making them. CARC sticks with their Erdnase stuff for the most part (Ask Alexander was the first departure from that mold), and the design is a USPCC trademarked/copyrighted/etc. design. T11 took the standard casino-issue Stinger design, removed the little Bee logos from the corners (ironically, it was what gave the Stingers their name), left out any casino ID and swapped Bee standard stock for Aristocrat. The colors used are pretty much the same colors the casino Stingers are made with on the faces. T11 had some real success with the black and red Stingers, but go too crazy with the color selection and it'll start looking like the Magic Makers decks that come in a rainbow of colors! Blue would be awesome, but there's tradition among casinos and gamblers for using red and black - the same colors that make up the faces of cards. WSOP decks come with red and black backs.
I'm digressing a little, but the point is T11 is still selling the red Stingers. If they do blue at all, it probably won't happen until the reds are sold out, and then only if the demand was huge. I just wish they made the red Stingers box like the one for the blacks - it's the first time I ever saw a tuck box with an air cushion finish!
BTW: I have all the Titaniums - I personally didn't have any real problems with them, other than the fact that "steel blue" looks an awful lot like "vaguely shiny gray". The crimson reds look far more impressive. And I wish they'd done something metallicky with the black cards - half the deck is really shiny, the other half looks bog standard except for the face cards.