Goofy Seat Belt (Noise) Question

This is not Tacoma specific, but something that has always driven me a little crazy in all of my cars. Maybe there is a product I can purchase to help eliminate the rattle/vibration.

Okay so, if you're like me, any rattle or odd noise your car makes bugs you. As we've all experienced, the male end of the seat belt hangs between your seats and the wall of the cab, often rattling and vibrating and it's usually the seatbelt farthest from you that you can't reach while driving to adjust.

Does anyone know of a simple rubber "bumper"-like thing for sale that you can fit around it to dampen the rattle? I'm not going to make some wrap for it myself because that would look dumb.

Having a nice, new ride makes me want to enjoy the quiet cabin for as I can, rattle-free!