@tweetypie... thanks so much for that offer. I might very well take you up on it. And to striatic, great tip! And to MIstress*of*Fishies, I shall probably do exactly that! Thanks so much for the replies!
Donate them to level 1 players, just to confuse them.
Nah, just kidding... but my guess is that you can donate them to shrines for big favor points, especially if you use shrine powder first. I donated some tinker tools once, and if memory serves me, they gave better results than gems.