I've got lots of hex bits for the electric drill, the electric screw driver and various interchangeable tip tools. I've been keeping them in a jar on a shelf. I've gotten sick of dumping them out to search for the one that I want.
This design gives me instant visual access to the whole array of hex bits. I've printed a half dozen of these for all the different types of bits.
print at a fairly high density so that the pegs are strong. I printed with supports for the pegboard legs.