Thread-legged Bug
I’ve never seen one of these before, but I think that’s because they’re hard to spot, not because they’re particularly rare:
This is a “thread-legged bug” that I found in the bottom of the wheelbarrow after moving some old lumber. At first, I thought it was a tiny splinter of wood, before I realized that it seemed to be levitating slightly[1]. The legs are long, thin, and practically invisible, hence the name.