Funny Chemistry of Caffeine Coffee Mug Get your morning started off right with coffee or tea in this witty mug! Decorated glassware makes perfect gifts for mom, dad, husband, wife, brother, sister, friends and many more! We have you covered for any holiday, birthday, wedding, bachelor or bachelorette party, anniversary, award presentation or retirement gift. Vibrant design is printed onto the surface of the glass in black. Glasses are dishwasher safe, however, to increase longevity of the design we recommend hand washing. Our fast turnaround time means you can order your glassware last minute.