The only "non-standard" color he mentioned was the golden tint on the captive-bred ones. I know that he hatches out some of the pink-skinned ones on occassion. He once told me that he has some collectors with standing orders for all of those he hatches out. You may want to plead with the folks at www.turtlesellers.com to take some pictures of theirs and post 'em for all of us to check out. The pink-skinned ones they have for $25 sound like a steal.
:By any chance did you ask Mr. Richards if he had any unusually colored ali'snaps available?