Personally, I love the octopus version (below) but you can also buy the wallet with a wolf, deer, skull or snake (above). See some more pictures below... 3D printing is opening up possibilities ...

Here’s some interesting work shared by [Ben Kromhout] and [Lukas Lambrichts] on making flexible 3D prints, but not by using flexible filament. After seeing a project where a sheet of plywood was ...