The kitten, who now goes by Buffy, weighed less than a pound when she was brought to the Humane Society, the Milwaukee Journal Sentinel reports.
"She's the sweetest little puffball," Angela Speed, a spokeswoman for the Wisconsin Humane Society told The Dodo. "It broke our hearts to hear how she was treated."
Speed said that Buffy is in a foster home now, getting the love and care she needs to grow. "Buffy has a hearty appetite," she added. Buffy's foster family keeps her updated on the kitten's status, and they tell her that Buffy is happy, healthy and loves playing with her toys.