Organized by Priority > Date/Rarity

• Oyster Hamster - Lost City Event '17 (R)
• Red Earthworm - Camping Event '23 (R)
• Brown Earthworm - Camping Event '23 (R)
• Squid - Christmas '23 (VUC)
• Green/Orange/Purple Insect Dragon - Halloween '22 (VR)
• Unique Ear Dog - Halloween '13 (R)
• Space Lion - Space Event '16 (R)
• Baby Kirin - Store Pets '14 (VR)

The only OMGSR I would be interested in obtaining if given the opportunity is the Pineapple and -maybe- the Phoenix.