There was a one-handed (one-armed) squatter on the board, but the posts were lost in the crash. It can be done with a MantaRay thingee, but I don't think it's necessary for you. Just high-bar until the hand is better, and trying to avoid placing any leverage on the metacarpals. In other words, keep the bar as close to your wrist and as far from your fingers as possible. Same for presses and benches. If you're careful, you can train almost normally. I doubt you can tolerate any tension on the hand right now, so your trapeze shit will have to wait another month. The key to healing it is the movement: the fracture has to "perceive" the load, but the load cannot be sufficient to disrupt the healing fracture.