The Chadster outfitted his bike with a large dual-trumpet horn from a train, connected up to a tank filled with compressed air. He says this produces much louder results than you get by just hooking up the horns to an air compressor, so I can only imagine how loud it really is. The video clip below gives you a sense of it, but I’m guessing that in person, it’s much more startling.

The rather simple build requires a cruiser in order to provide a large rack for holding the compressed air cylinder, along with some hose, bungee cords and duct tape. Chad provides instructions on how to build your own over on Instructables, but recommends that you only use it to give pedestrians a scare (and maybe a heart attack,) and not riding in vehicular traffic. Personally, the bigger problem I see is that the rider of the bike probably needs to wear earplugs when riding if they don’t want to go deaf.

The NET-2000 Shooting Net Rod uses a charge of highly compressed air to fire a net at fleeing suspects from as far as 49 feet away.

Click to View Embedded Video Clip

While it doesn’t spin a web of just any old size, it does fire a huge 52 square foot net made of high strength Nylon fiber. While the device may look like an innocuous flashlight when not in use, it sure packs a wallop when fired up.

In addition to law enforcement use, its designed for animal catchers to use in place of traditional manual nets. Importer Chinagrabber is selling the devices for just $419 a piece, but I’d suggest that you check with your local police department before you try to catch stray alley cats with one of these.