Baggy Tees from free dingbats...
Hmm. I like the back of the sea horse one - same on the shell. I am not so keen on the front of the seahorse - I am not sure why - I think it is because the knobbles on the seahorse spine and the shell edge are a bit dark. They do look like TShirts though.
I like the blue one, my fave remains the griffin
I knew you liked the orange one, I was putting them side by side so you could judge the contrast on the others against that one.