Build your own spot welder, im not even kidding...

http://www.instructables.com/id/Spot-Welder-from-a-microwave-oven-transformer-and-/

I am definitely not held responsible for anything that goes boom or limbs lost etc. If you got a microwave laying around you don't use and want a quick and cheap spot welder and don't mind ..... uh yeah you know the drill. Stay safe guys. It's a reputable site and ive made things from it before =3