You can get them at Target!!! I think they were only $6 too...my Grandma saw them and HAD to get them for him, haha. She also bought me my first pair of snow boots when I moved up to NY, so it was only fitting.
They are SO soft too! And warm! I thought DH would roll his eyes since they are semi-ugg like...but he thinks they are adorable too. So yeah, check Target and you too can have a pair.