Diy Jewlery Clay?

[numbexistence.livejournal.com]

Hey guys I was wondering if you know some good quality clay I could use to make jewlery? Mine just dries so fast the the jewlery cracks before I can mold it and I literally endup wasting half of it plus I have to file it down to make it smooth. So if you could tell me what kind of clay you guys use & how you get it so smooth that would be very appreciated!

Thank you!