I decided how to end my mitten:
"I love to knit." That's the truth. However, I don't know that I love it enough to knit another mitten like this one. I may come up with a different chart for the tip of the second mitten.
After I finished knitting the mitten, I lined the cuff with the goosebump yarn. It makes it very much thicker. If I do that again, I might decrease the number of stitches in the lining. Knitting it on smaller needles wasn't enough. You can see a pucker on the left.
Details: Based on the Potpourri Mittens from Fall 08 Vogue Knitting. I used worsted weight yarn (Kashmira wool and Goosebump alpaca) instead of the fingering weight the pattern specified. The gold yarn is silk, stolen from a sweater yarn stash. The light blue is wool, pilfered from a hibernating scarf project. So that the mitten would not be too big, I altered the charts to reduce the stitches to 50 in the cuff and 54 in the hand. I could have used a few more stitches in the hand, especially across the base, since there is no thumb gusset. Nonetheless, this mitten blocked out to 8" around and fits pretty well.
I used 24 stitches in the thumb, putting 8 repeats of the heart pattern around it. It is a little tight where I picked up stitches for the thumb. I probably need to cast on stitches a little more loosely after the thumbhole. (Is that a word?)