Cheeky Tumbler Gift for Mechanical Engineers

Looking for a gift for that brilliant mechanical engineer in your life? This tumbler's got it all—stainless steel build, vacuum insulation for hot or cold sips, and a cheeky slogan: "CAUTION: I'm a Retired Mechanical Engineer. I Have Stories and All Days to Talk. Stay at Your Own Risk!" Perfect for grads or anyone who appreciates a good chuckle over their cuppa. Gift it and make their day!