Looking for a Metal Device with Removable Pin

Does anyone know if there’s a metal chastity device with a removable pin on the base ring? Or perhaps one with a vertical pin? This was essentially the only feature of the CB# that I liked, because it allowed me to remove the pin for sex without taking off the entire ring. (Currently, Lukus is kind enough to rotate the ring so he’s the one getting poked by the pin, but it would be better if the pin could just disappear.) I’ve been browsing several websites selling metal devices but haven’t found anything similar yet. I suppose a cast could be made from my CB device, but first I need to locate it! (After that painful incident, Lukus put it in what he called a “safe place,” which naturally no one can remember now—I honestly didn’t think I’d ever want to look at that thing again. I really dislike sex toys that cause injury!) Anyone have any ideas?