The Car Seat Poncho from Hell

Poncho: a small circle within a bigger circle. Should be easy, right? Well, the online tutorial I tried didn't make sense to me, so I decided to wing it. After screwing up my measurements, it became a jumbled mess. I wanted to post my own instructions on how to make one, but I will spare you the confusion. Eventually, I ended up with this poncho. Note the decorative black ring around the collar--added for a little pizzaz and certainly not because I cut the neck hole too large. First, you get proof that I did measure. Then, Ian was already in bed for the night, so you must deal with me modeling it. Let's hope he likes it.