For this project, I bought a hooded vest on sale at Walmart (can't tell you how much because the gift recipient might see it). The video suggests the use of felt for the teeth and eyes, but I had leftover pieces of Polar Fleece, so that is what I used. And of course, I used my sewing machine instead of fabric glue.The Monster Hoodie's Sharp Teeth
I actually cut two layers of the teeth strip and used the zigzag stitch on my machine to assemble them together. Then, I fixed to the hood's opening by sewing over the original seam, making it as invisible as possible.
For the eyes, I began by fixing the pupils to the whites with a zigzag stitch, than I fixed the eyes to the top of the hood, still with a zigzag stitch.
It was a very easy project to make. I'll have to make myself one eventually.