Do you remember the Keybrid Keyring Key that I reviewed about 5 years ago? It was the marriage of a common house key and a split keyring. Amron Experimental, the same company who brought us the Keybrid is back with a new key-based product. This one is the Carabiner Key and as you’ve already guessed, it’s a key with a built in carabiner. It has a spring loaded gate that you can use to attach the key to your belt loop, gear bag, etc. It’s priced at $12.50 each and comes in either Kwikset or Schlage style key blanks so that you can take it to a key making kiosk to copy an existing key. What do you think? Useful or silly? Visit Amron Experimental for more info.