$42,828.12 DIY human sized hamster wheel project...

I could not resist posting a link to this article at Cult Of Mac showing how two IT professionals found an ingenious use for all the iMac boxes after a large deployment at their school. According to my calculations, the cost for the project would be $42,828.12 if you purchased the most entry level iMacs currently available. Of course, that cost excludes the packing tape needed and any potential first aid supplies that will most certainly be required.

Budget version would be about $1,800 if you wanted to just buy used empty boxes off eBay .  Photo: Studercinema/reddit

Budget version would be about $1,800 if you wanted to just buy used empty boxes off eBay 
Photo: Studercinema/reddit