Sugru For Tying?

Has anyone tried out Sugru for forming bodies or anything else on flies? They say it sticks to just about anything, is durable and saltwater-proof. I'm thinking of picking up a pack to try out. Anyone else have any experience with it?
I've tried it out on repairing stuff, not on flies.
Too much of the stuff and it'll take a little longer than the advertised 24 hours to cure, closer to 36 hours was my experience (haven't used much of it yet.)

After playing with it, I can't imagine it not adhering to a hook.