Here's the site for Alaska Picks: http://www.alaskapik.com/

I haven't yet got hold of the improved version with better quality plastic, or the metal, but I still like the idea, especially for the thumb. But the brittle pastic they used to use was awful, and nobody seesm to have imported the better ones yet.

Typically, anytime I have my nails the right length, one of them breaks, so it's shorter than the rest - so I end up cutting them all short to match, and they aren't quite the length I like for playing. So I find myself using a plectrum, even on songs or tunes where finger-picking would be better. But the fingernail stubs would be long enough to anchor a set of suitable Alaska Picks, if I had a set of suitable Alaska Picks.

They won't suit everyone. But they're worth trying, and they aren't compulsory.