I recently picked up a newer vehicle with one of those "new-age" key fobs that unlock the doors and have a "panic" button on the bottom. As a pocket minimalist, the thing was just too much added bulk to my ring. (5 keys, small strong split ring, paracord monkey's fist attached via a mcgizmo 2 clip) The design of the fob is pretty good. It's not too thick, not too heavy and fairly sturdy. However, I look at it and see 75% wasted material. What might be fine for some makes the set of keys difficult to extract from pockets, etc. Plan 1: First thought was a smallish aluminum piece. Course that lasted me all of 20 seconds. I'd have to wire the antenna to the outside or figure something else out. (Have an idea for this actually. Plan 2: G-10. I like it. Utilizing the original silicon top (buttons and top cover) and then rerouting the battery from the bottom to the bottom face... Dimensions drop from : 61.5mm x 31.1mm x 13.1mm to : 57mm x 24 mm x 8.5mm Around a half volume reduction. Working on a plexiglas mock out of some scrap.