The first group (see below) is pairs that include a wooden shoe (or shoe last or stretcher) along with a figure made with wood and found objects. Someone visiting the studio asked, "Why are those two things together?" I guess it's the same reason people pair up: They're attracted to each other!
The next group I'm working on is garden shears and loppers paired with figures that have the same splayed posture as the tools with which they're paired.