This is a mount that can hold one of Adafruit's Pro Trinkets and an accelerometer below it. It is made to be screwed onto one of the trucks of a skateboard, removing any need to drill holes into your board. It is still in the works, so I don't recommend printing out this version thinking it is good to go. Update (3/21/15): I have actually printed this version out and am using it for my project. It printed fine and nothing has sheared to snapped. Using a Makerbot with ABS at 25% fill. Can bolt onto standard skateboard trucks and can survive being ridden.