This year the boys wanted to be Adventure Time characters for Halloween - my younger son was Finn, my older was Jake, I was Princess Bubblegum (in her lab coat wearing incarnation since I already have a lab coat and a pink skirt and I'm all about reusing things) and my husband was the Earl of Lemongrab.
I made a Jake hat a while ago and got a sweatshirt and pants in almost the same color. And we already had a Finn hat, shorts and t-shirt so all I really needed to do was make the lemon head for the Lemongrabs costume, a lemon belt, Finn's backpack and Princess Bubblegum's crown.
So for October's bags and purses accessories challenge I made the Finn Backpack! For the backpack I used a simplified version of a pattern my friend Twila drafted and was kind enough to send me. It's made of 2 layers of fleece with a decorative button and a velcro closure. I wanted him to be able to put stuff in it but don't plan on having anything heavy or using it like a real backpack.