DIY Cosplay chainsaw - Work in progress

I have a Lollipop chainsaw themed photo within a week. I need a chainsaw asap, problem is I have really no budget so I have to make my own.  

Surveying what I have in my junk box, I found a broken USB desk fan. This is the replacement one I have for reference.

Surveying what I have in my junk box, I found a broken USB desk fan. This is the replacement one I have for reference.

I made the base of the chainsaw and designed it to the size of the fan cover.

I made the base of the chainsaw and designed it to the size of the fan cover.

Added some PVC for the handle, im not crazy about it, but I had little to work with so I made it work. Started shaping the form with cardboard pieces.

Added some PVC for the handle, im not crazy about it, but I had little to work with so I made it work. Started shaping the form with cardboard pieces.

Added the chain section. This is three layers 2 outer foamboard pieces and the chain part is cardboard. I found it easier to cut the cardboard shapes. I also used a hole punch on the jagged hook shapes.

Added the chain section. This is three layers 2 outer foamboard pieces and the chain part is cardboard. I found it easier to cut the cardboard shapes. I also used a hole punch on the jagged hook shapes.

more detail work, and found an aluminum L Hook that made a good handle at Wal-Mart for $3.  Next I cut a hole in the bottom and tightened the bolt what I could and filled with spray foam. To be continued....

more detail work, and found an aluminum L Hook that made a good handle at Wal-Mart for $3.  Next I cut a hole in the bottom and tightened the bolt what I could and filled with spray foam. To be continued....