Architecturally engineered smokers
Those who lead grand enterprises often find pleasant diversion in working on smaller ones, like gardening, or wood-carving, or making a cameo on Star Trek: Enterprise, much to the consternation of Scott Bakula. For a design+build guy toiling on a smaller, smokier project, check out Steven Mattern.
An architect/engineer whose larger projects range from organic farming infrastructures to solar-powered showers, Mattern's taken to making laser-cut wooden pipes with functional moving parts, matching the rigor of engineering training with the "poetry of architecture", which would be more celebrated if only these walls could talk. Some choice wares:
If you're flush with impossibly clever pipes, Mattern also applies his know-how towards magnetic geography puzzles, with available options including Italy, South America, and the United States -- a place where any enterprise big or small has a chance of success, unless it's captained by the guy from Major League III: Back to the Minors.