Knitpicks offers many sheldon costumes, so you can swap out the turtle shell and turn him into a super hero, pirate (coming soon), bee, sheep and more. I have selected the pirate costume to make for Keith's stuffed turtle. When The Dark Knight was new, Keith had a lot of fun sneaking up on people and saying in a harsh voice, "I am the Batman!"
In my latest huge knitpicks stock up, I ordered one ball of Bison Shine Sport to create this costume. But then there was a problem: Knitpicks.com indicated that this pattern will take 2 balls of shine sport... Thankfully I found a user on ravelry who indicated that the pattern only took 70% of one skein. I even sent the user a message to make sure that wasn't a typo (that she hadn't meant 1.7 balls). It looked like I would be okay with the amount of yarn I had.
I followed the pattern as directed, using the yarn (although a different color, since Fedora was not available).
I knit the wings before the arms because I was still concerned that I would run out of yarn. I figured, if I ended up with a second dye lot, the arms would be mostly hidden so it wouldn't matter. (This ended up not being a problem.) The pattern only showed pictures of the finished product, so I took a lot of pictures during the construction process.
I liked picking up the stitches for the armholes rather than knitting arms and sewing them on. (Of course, you cannot really sew on sweater arms without there being a hole for the arms!)
The completed arms.