Here’s a really pointless but fun DIY for building a bluetooth handgun that will answer your calls at the pull of the trigger. Great, all that for answering a phone? Isn’t it a little too much reverse-engineering?
How to turn an airsoft handgun and a bluetooth headset into a fun, fully functional handset for your iPhone. Pull the trigger to receive calls and to, um, end them. Listen through the barrel, and talk into the grip.
I think everyone has made the thumb and forefinger gun-to-the-head sign when someone unpleasant shows up on their caller ID. Eli and I thought it would be fun to make an actual gun handset, and it turned out to be surprisingly straightforward. No glue or powertools were required.