Like the hedgehog, this pattern is worked in the round to provide nice, full fur. Depending on your gauge your size will vary. But, that can be really cool - add more rounds to make a really large sheep, or fewer rounds to make a tiny one. You decide!
A black sheep and a gray sheep would look great too! My nieces want a purple one and a pink one, so I'll be working on that soon.
Pattern is only $5 and you can pick up your copy on this site, Etsy, or Ravelry.