Yo, TM, check out the Ospreys on TW for a similar carp-like pattern. I thin I saw a few of their colors that might look good as for carp. They were the closest swimbaits I could find like size and color wise, so check'em out.
Oh, yeah, about carp. People do use them for bait. My local lake is just friggin' infested with the little suckers. Both wild and domesicated. Some are huge too. They travel in pack of like 3 or 4, including the really big ones! Every year I see at least 4 or 5 20 lb.+ carp 'round the lake. I personally hate them because too many = bass nest raiders. But I know that the big bass probably make a meal out of a sluggish carp or two every once in a while!