Need help on a project idea.

[537]

I'm in a creative fabrication mood.

I need some ideas on something to build within a budget. I will be willing to post an in depth How-To on my project.

Please start throwing ideas out. Extra points for implements of destruction. I'll research the good ideas and determine whether it is within my budget. And then I'll get to work!

Things that cannot be built are:

PVC Flamethrower (as awesome as this truly is, it has already been done and I want to be the first one to create something)
Potato Launcher




Points go out to those that can come up with a truly original and wicked idea that I can actually fabricate. Who knows, maybe I'll even send it to you in gratitude.