Odor Tester
Betty Lyons spends her days at Hilltop Labs in Cincinnati sniffing the sort of stuff that most people try to avoid: from feet to armpits (pictured here) to cat litter and diapers. She began her career 35 years ago as a test subject, then trained for almost a year to become a judge; she is still tested monthly to ensure her sense of smell is up to par.
Crack Filler
Think of it as Botox for the granite-faced. When cracks develop on the 60-foot-high faces that grace Mount Rushmore, Jeff Glanzer is there to fill them up with silicone sealant before they can develop into more serious splits. That's one reason why the faces of our forefathers have held up so well since they were sculpted from the stone more than 60 years ago.