Anyone have creative gift ideas for my bff's graduation?!?

my friend and i have been bffs for 2 yrs now, but he is a boy and i am a girl... needless to say i cant take him to the spa like i would my other friends. I was thinking baseball tickets and a jersey for that day, but i realllllyyy want to do something cuter! i always love when people do whole day adventures! so if anyone has any other ideas that would be GREAT and MUCH appreciated!! thanks :)