For the mechanic who knows that every strange rattle eventually becomes an invoice. This glossy black mug features a bold garage-inspired design with tools, gears, dollar signs, and the line “Turning Mystery Noises Into Invoices.” It brings a little shop-floor humor to early coffee, break-room banter, and long days spent diagnosing what no one else can hear. Choose the 11oz size for a focused morning boost or the 15oz size when the workday calls for extra fuel. The C-shaped handle feels comfortable in hand, while the vivid print keeps the details sharp. Microwave- and dishwasher-safe, it’s built for everyday use by adults who live for engines, repairs, and the satisfaction of finding the problem.

Product features
– Glossy black ceramic construction with a polished finish
– Available in 11oz (0.33 l) and 15oz (0.44 l) sizes
– Vibrant, crisp printed design with garage-themed artwork
– Microwave-safe for convenient heating
– Dishwasher-safe for easy cleanup

Care instructions
– Clean in dishwasher (put the product on top rack), or wash by hand with warm water and dish soap

	11oz	15oz
Height, in	3.86	4.72
Diameter, in	3.35	3.35
Diameter (with handle), in	4.72	5.12

plumbing humor cup

Plumber Coffee Cup — “If Water’s Going Where It Shouldn’t, Call Me.” Black Coffee Mug (11oz/15oz)