CNC milled lap joints
Inspired by Japanese puzzle games, the "Join" table by Ding 3000 links three legs in what's called the "Devil's Knot".
CNC Spring Joint Box
3 Way joint
Plug Shelf-joint legs
Classic Danish Design: Kay Bojesen's Wooden Toys
Man cave table
Cool Corner Joint.
Bendwood jig: A jig to bend wood without having multiple specific shaped jigs.