We parents were told that the turtles need a long-sleeved green shirt, and either green leggings or green tights.
Green tights seemed impractical - would I use them again? He wouldn't! And green leggings... well, same problem. Besides, I didn't find either of them at the store. I got thinking that maybe I'd just buy some green fabric and make them-
and then I stumbled across some way-too-big t-shirts on clearance, $2 apiece. I looked at their long cuffed sleeves, and it hit me- they're the right size for small-boy-legs! So, here's what I did. I'll probably add a sparkly green posterboard tail to make it a mermaid.