Amazon River Dolphin Mug Your favourite amazing animal on your mug...perfect! £9.00 Sorry but I'm currently out of stock! Your favourite amazing animal on your mug the perfect way to start the day, why not collect them all for the ultimate mug collection. Our mugs are approx 10-11oz and are dishwasher and microwave proof. In stock and ready to ship from my home studio in Wiltshire. Featuring my Amazon River Dolphin illustration.