If hes into cars, buy him a speedtech credit or something similar. If hes into music, get him some equipment, or lessons. Tools is one of my all time favorites. Nothing like a new socket set
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents... some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new Dark Age."
-H.P. Lovecraft