The pattern was "Chunky Piano Mitts" by Michele Bernstein, and you can find the pattern here on Ravelry: http://www.ravelry.com/patterns/library/chunky-piano-mitts or here on her blog: http://pdxknitterati.com/patterns/chunky-piano-mitts/
The yarn I used was Kona Bay Knitting Yarn Party. It's a 12-ply bulky yarn that's 100% nylon, in an eyelash type. It's very soft and was fun to work with, but frogging would definitely be a pain.
Once I completed the first slipper, I tried it on. Fit well on my foot, but the garter stitch cuff was much too loose. I knitted the second slipper and made the cuff out of K2P2 ribbing instead of garter stitch. That worked better, so I frogged the cuff on the first one and reknit it in ribbing. However, they still slipped off my heels when wearing them, so as a final touch, I added a crocheted tie on each one. That seems to have done the trick.
Now, I'm back to working on my Applegate Shirt (pattern from Oat Couture) and hope to get it finished shortly. I'm on the second sleeve, then just have the placket and neck to knit, and of course the sewing.
What are YOU working on to keep you warm this winter?