This is either a great idea, or an accident waiting to happen: it all depends on just how strong the magnets are. The Mag-Vest is being marketed to garage tinkerers for its ability to hold on to your metal tools with strong C8 Grade ceramic magnets, which reportedly can hold up to 10 pounds. If you’re working on something, you might find it more convenient to place some things on your chest, rather than in a tool box nearby or on the side of the hood where they might fall into the engine bay. It’s not a bad idea, but being untested we would worry that the 10 pound claim is optimistic. However, if they’re strong enough to prevent your hammer from flattening your pinky toe, it might be worth the $60 pledge.