We're Pregnant Coffee Mug, pregnancy reveal, Pregnancy Announcement, Father, Grandmother, Bottom mug, hidden message, secret message, Funny, Cool, Coffe cup Original design mug hand printed to order It high temperature decal mugs - mugs made in 900oC - 1700oF temperature. microwave and dishwasher (top rack) safe - 100% safe for children design printed permanently on one side of mug as shown, PORCELAIN Unique drinkware great for gifts and everyday use; 100% satisfaction guaranteed