I am not sure if any of you have seen this yet but the guys over at Modern Mechanix have posted an article from Popular Science 10-1947. It is all about how to turn old boms in car mufflers. Pretty cool stuff. Enjoy! http://blog.modernmechanix.com/2006/10/03/beating-bombs-into-mufflers/
yeah take a practice bomb you can buy for $129.99 and cut it up into a muffler you could buy for $19.00. Sounds like a great idea...
it'd probably be easier to "dress-up" a muffler to resemble a bomb, rather than take a bomb and make it resemble a muffler ... cheaper too.