Sam Guthrie, aka Cannonball, first joined Professor X's band of merry (x) men as a founder of the New Mutants (although he was duped into joining Donald Pierce's evil Hellfire Club mercenaries first). Sam went on to join many other X-teams, such as X-Force, X-Treme X-Men, the Hellions, the X-Corporation, and of course, the X-Men. In addition to Sam's mutant power of flight and energy shield, he may be an external mutant like Selene and Apocalypse.
I have depicted Cannonball in his first X-Men costume. The body is Spider-Man, and the head is movie Peter Parker. The 'x' belt buckles are from other Marvel figures, as are the belt and pouches. The boot and glove straps are made from elastics. Photos by Nara and myself. Thanks for looking, and comments are always welcome. Make Mine Marvel!