One of the unique aspects of Lambert's new line pertains to the toys, which are all modeled off real-life rescue animals in an effort to share their stories. Lambert's own pup Delilah even has one.

Lambert said about the line, 'The creation of MuttNation is a dream come true. It's an extension of me and my mom's love for all dogs and our goal of helping every dog find a happy, loving home. We are beyond thrilled to have Petmate as a committed and trustworthy partner that shares that same vision. There are millions of beautiful dogs looking for homes and it is our hope that in addition to raising money, we will raise awareness to the joy of adopting a shelter pet."