A special thanks to Isotope 244 for sponsoring this contest! Winners, check your inboxes for an email tomorrow for directions on how to claim your prize!
The answer to is C-60 an Isotope is:
No, C-60 aka Buckyball could not be an isotope. If it was one, it would have an unstable nucleus and hence could not remain in existance.
Have a great night everyone and thank you for participating!