Team Fortress 2 - Crafting

The upcoming Team Fortress 2 update is getting more interesting by the day.  A new crafting webpage has appeared as part of the update, with a promising opening:

For years you have been able to create weapons with your bare hands, using raw steel, in real life. What if we were to tell you there’s now a way to SIMULATE that in-game?

Apparently this will run off of blueprints where various items can be combined to create the item you want. A screen shot of the crafting screen is below:

Valve never ceases to amaze me with the updates for TF2.

Update: Also found http://www.teamfortress.com/war/saxtonhale/poopyjoe.htm