Here is a wonderful example on the Martha Stewart website of using children's drawings as stuffie patterns. http://www.marthastewart.com/article/material-world
Here is another site with many free stuffie patterns. http://tipnut.com/sweet-softies/
And last but not least....http://allcrafts.net/sewing/stuffedanimalssewing.htmanimalssewing.htm
Abby has been working on making her own patterns and I hope to have those posted in the next day or two.