Oh my goodness that's so cute, where did you get it? My llittle fosters name is Ralphie and his nickname is Bunny. I don't think that would fit him though he's about 4 pounds 9 ounces. There's a Christmas Movie called The Christmas Story and the main character Ralphie gets a pink bunny suit.
http://4.bp.blogspot.com/-uiZH7z-NqL...unny-suit1.jpg Do you remember where you got it?