Abstract: A system includes a mounting portion and an accessory portion. The mounting portion includes an alignment projection protruding from a first surface, a mount-side recess formed in the first surface and offset from the alignment projection, and a mount-side object disposed in the mount-side recess. The accessory portion includes a second surface forming an alignment recess configured to receive the alignment projection of the mounting portion, and an accessory-side object disposed in the accessory-side recess. The accessory-side object and the mount-side object are configured to couple to removably secure the accessory portion to the mounting portion.

Abstract: A system includes a mounting portion with a planar elongated geometry and an accessory portion having a geometry similar to the mounting portion. The mounting portion includes an alignment recess formed centrally on one side of the mounting portion to extend partially into a thickness of the mounting portion, a mount-side magnet seat formed in the one side of the mounting portion, and a mount-side magnet disposed in the mount-side magnet seat. The accessory portion includes an alignment projection formed centrally on one side of the accessory portion to extend outward from the accessory portion to engage with the alignment recess to align the accessory portion with the mounting portion, an accessory-side magnet seat formed in the one side of the mounting portion, and an accessory-side magnet disposed in the magnet seat to engage with the mount-side magnet to removably secure the accessory portion relative to the mounting portion.