I just finished these finger puppets. The happy face is on one side, and the sad face on the other. I will take them to 4-year-old big sister and 2-year-old big brother when baby sister arrives next month. I used scrap yarn, and size 3 dp needles. The pattern is here: http://www.kidsknits.com/fingerpups.htm
The pattern calls for size 4 (or 5) needles, but that was too big. The faces took longer to do than the knitting.