I'm a big fan of consumable gifts, if they're into sports then buy them tickets to a sporting event. Find an activity that they like and do that activity with him and a few of his closest friends. I'm sure he'd love that you got his favorite people together doing something he enjoys.
Give him something that can't be (readily) bought. This could be a drawing from his children, backstage passes to a sporting event (as Lunger suggests above) or concert; a trip to an awards show like the Oscars, VMAs, etc (depending on his interests). Anything that aligns with his interests, and takes time & effort (more so than money) to pull off.