I made these out of that foamey craft paper for my son's 4th birthday party. I used this template to cur out the basic shapes and then drew the additional emblems freehand. Then I glued alligator clips to the backs.
I'm happy with how they turned out, and they were a big hit at the party! All except for the Skye one (in pink), which was widely rejected -- evidently 4 year old boys are already socialized to reject all things "girly", which made me a little bit sad.