Are you looking for a unique gift for your Supervisor? Look no further! This funny black coffee mug is perfect for any Supervisor who is also a ninja by night. The quote 'Supervisor by Day, Ninja by Night' is a great way to poke fun at their dual roles.

This ceramic mug is microwave and dishwasher safe, making it easy to clean and use. It's a great way to start the day with a smile.

This gift is perfect for Supervisors who appreciate humor and can't resist a good pun. It's also a great way to show your appreciation for their hard work and dedication.

So why wait? Get this funny black coffee mug for your Supervisor today and make their graduation celebration one to remember!

• Start your day as a 'Supervisor By Day. Ninja By Night.' with our black coffee mug, perfect for graduation celebrations. Made from high-quality ceramic, this 11oz or 15oz mug is both microwave and dishwasher safe, making it easy to use and clean.
• Get the recognition you deserve with our supervisor coffee mug, featuring a bold black design that's sure to impress. Whether you're sipping coffee at the office or enjoying a quiet moment at home, this mug is the perfect way to show off your leadership skills.
• Whether you're a supervisor by day or a ninja by night, our black coffee mug is the perfect way to express your personality. With its sleek design and comfortable handle, this mug is sure to become your new favorite way to enjoy your morning coffee or afternoon tea.
• Our black coffee mug is designed to meet the needs of busy supervisors, featuring a durable ceramic construction that can withstand the rigors of daily use. Plus, its microwave and dishwasher safe design makes it easy to clean and maintain.
• Show off your supervisory skills with our black coffee mug, the perfect gift for graduation or any other special occasion. With its unique design and comfortable handle, this mug is sure to be a hit with anyone who receives it. Get yours today and start sipping in style!