So valve and polycount got together to hold a contribute theme contest. Each contestant has to create a minimum of 3 items for a single class with an overall theme and... fit into the team fortress 2 universe.
I decided on doing a "Bigger is Better" theme for the engineer.
My first weapon is the "Big Mean Mother Hubbard". Its an oversized shotgun/blunderbuss that shoots metal bits instead of normal ammo. Its currently at around 4,700 tris and using a 1024x2 diffuse.

my second item is the "Big Tex" revolver. Its oversized in size and ammo capacity. Untextured at the moment, its the last one to get textured.

The last item is "The Big Bang" mallet. It replaces the engineer wrench.