Tanga offers this Unisex "Pizza" T-Shirt with Matching Baby "Crust" Onesie in White for $19.99 with free shipping. That's $23 off and the lowest total price we could find. It comes in adult sizes S to XL with baby sizes 6M to 24M.

Note: Size XXL costs $23.99, while sizes 3XL to 5XL cost $24.99.