Was getting sick of digging through the bag of pins in the door for the gear pins, so I created a 3d print model of a gear pin holder to make them easier to find. Made like the ones that come on the 650 not sure if this originally came with the aircraft and was lost or they never had one. Either way this fits the pins quite well, will have to see how it holds after time may need to change material after all the hot and cold cycles.