Based on some drawings of mine from over 10 years ago, which at the time time influenced by popular sci-fi, this laser rifle is very tactile to hold and I'm pretty sure it won't be long before you're pointing it at things and going 'pew-pew-pew' :)
Designed with a loop for attaching a keyring too, this will fit well with any set of keys. (If you like guns and keys next to each other)