Funny Mug 11OZ "I am mechanic of planes, fix planes, wrong" Inspirational novelty and gift, dad, by Yates And Franco della Pace is a Registered Trademark of Yates and Franco. This mug features printing on both sides. Resistant for restaurant use, dishwasher and microwave safe. 100% pure white ceramic with money back guarantee. Great gift for coffee addicts who will appreciate for years.