I use Mahimahi a lot since it is all over here. It has very thin, but very tough skin. Normally, fisherman just tear the skin clean off in one go and throw them in a pile at the fish market that is free for the taking. Although the intensity of the fishes colours fade out as it dries, it still retains a nice bluish colour and the belly skin fades to a really nice white with little blue dots. I used shark skin a few times and for whatever reason, it became gelatinous after a few months and fell off. Not sure why that was and haven't seen anything like it since. Eel works nice, is surprisingly tough, but is really fatty. Leopard eel looks awesome. I'd imagine fish with smaller scales or non-scally skin would work best, but I've seen carp backed bows with big scales that looked nice too. Waiting for the chance to use sturgeon someday!
