Check out my plasma gun.

Here is how I made it - I got a water gun from Canadian Tire. It was blue and white and green, but that doesn't matter because I knew I was going to paint it later.

Then, I got some hosing, some zip ties, some plumbing 90 degree joints, some green string, and a few other knick-knacks :)

Then, I got a epoxy mould that had some cogs and interesting shapes like wings (which I later used on the handles). Dad and I used 2 part epoxy to create those pieces and left them overnight to dry.

We then stuck all the shush-kebabs on the gun using glue. Including the test tube, full of washing detergent with blue food colouring. Then we sprayed it black.

After that, I glued on the green string and painted some silver bits to make it look metal.

Voila!