Lyle Landstrom on pattern making:

Pattern making is like life. In life you live one day at a time but with a clear goal in mind, solving each hurdle in steps. In pattern making, you break up a 3-D object into simpler geometric shapes which are then assembled into the goal - or pattern.

Landstrom's Foundry casts everything from bottle openers to Warpath Indian engine cases out of common, useless junk and crafts it into rare, unique items.