LightInTheBox offers this Kigurumi Kids' Pink Pig Onesie for $7.99 plus $3.87 $3.66 for shipping. That's $39 off list and the lowest price we could find.

Note: It's available in kids' heights from 100cm to 140cm, or 39" to 55". Also, this item ships from China and may take two to three weeks to arrive. Uncheck "Add Shipping Insurance to your order" during checkout to remove the 49-cent fee.