#217 with the League, including the Pinioned Powerhouse himself, Hawkman!
If you are going to use a JLA image for a piece of schoolgear, this has got to be on the shortlist. About the only complaints I have is that Hawkgirl is not on the cover as well, and that we never had anything even remotely as cool as this when I was in school!
Thanks to Bearer of the Honor Wings Shag (whom you can find over at Firestorm Fan and Once Upon A Geek) for hooking me up with this image!
Image: Justice League Of America #217 notebook, 2010, image retrieved from Firestorm Fan.