Just thought I'd share a few pictures of my display at a farmer's market I attend during the summer. For table props, I use a wooden step stool which my kids used when they were little, painted black now (not pictured). The crate is handy to carry all my stuff in, and it fits on the table as another prop to add height.
I display a few cards on this tabletop spinning rack. The rest of the cards go in a basket on the table for people to flip through.