I really like some of the key shackles I’ve seen in the threads. I know you can order them just for this purpose, but I was trying to find one in the local box and hardware stores. However, the ones I’ve found are too thick to fit through one’s keys (without boring them out). I’m guessing the pin would need to be no more an 1/8-inch to work. Has anybody seen a shackle that small in a hardware store, or will I just have to order one?