Don't know about the fridge part, but I bought this mini freezer from amazon. Very cheap and great shipping! It's small but it's the perfect size if you have like three animals.

Igloo FRF110 Vertical Freezer, 1.1 cu. ft., White https://www.amazon.com/dp/B00YEMSMYQ/ref=cm_sw_r_cp_api_uKsFybVGXF63F