a walnut........

I actually just recently bought an alien swarm parisite at 2 scrap, http://www.tf2outpost.com/trade/5887928 now this trade isnt much evidence as most people dont post, but check my bp, I bought all those at 2 scrap each. I have a screenshot to prove it; heres my proof http://i.imgur.com/Bc2wB.png and by recently bought I mean really close to the time you suggested this. (within 20 minutes)

You're a little too late, there is also another suggestion running for this (0.33-0.66) and I think we don't need two of them for a nearly similiar price.