Need some ideas for college aged "men"...budget in the $50-100 range. Gotta get something for the stepdtrs bf's

and a few of my stepson's buddies. Most are into hunting, one into video gaming, all living away in apts or rented houses. Cash is king (even in modest amounts) and a gift card to gaming store/hunting supply places or even gas cards would be appreciated but seems kins impersonal.
Any ideas?