Onshape link

The size is based off of a standard credit card, so it can be stashed away inside a wallet until needed.

You can optionally print with two filament swaps, one near the bottom and one near the top, for nice contrast of the face and pawpads.

To assemble, snap everything apart, then trim the framing remnants tabs off everything. Then, slide the paws in from the back until they're fully seated. The nubs on the back ends of the paws make sure they won't slide fully through.