I made shirts for my girls. It was really easy. I bet you could do it too. Here is a link to a blog that has instructions for making appliques. It's a turkey, but the exact same concept. I printed off a Foofa from the Nickjr website to trace the head. I had to reduce it to around 70%, or so. http://thecottagehome.blogspot.com/2...-tutorial.html
I highly recommend wearing something YGG. My oldest was picked to go up on the stage with several other children. I think they were looking for children dancing and having fun, but also dressed in YGG clothing!
Have fun! That concert was a blast!!