My pose reference card decks currently come in two flavors!
The first deck is a collab with @posemuse that features my photo on one side and a 3D cross contour workup of the same pose on the other side.
The second deck is a high and low perspective deck with one side of each card a low angle pose while the flip has a high angle pose. All the poses are different in this deck, lots of variety! There is also a free preview digital download.
Both decks come with a book ring that opens so you can keep them together and rearrange them.
I'm planning on making more of these in the future! According to my last poll, it might be hands.