The materials he uses in his creations are often technological cast-offs from family and friends, or garbage scavenged from electronics recycling facilities.

CNN: High-school teen builds one-man submarine for $2,000

Witness to that are the arcade's dark blue carpet (salvaged from a Vegas convention hall), mismatched ceiling tiles and a change machine that Arnold scavenged from a dumpster behind the Golden Nugget casino.

FORBES: Tilt

To lock in low long-term power costs, Higgins scavenged carrion from the meltdown: power plants built by electricity producers when prices were high.

FORBES: Lighting Las Vegas