Here are the necessary requirements for evolving your pinatas. I wont add what they evolve into, just what you need.

Sour Shellybean: Eaten an Apple Seed

Sour Sherbat: Has eaten a Jack-O-Lantern

Sour Crowla: Have a Birdbath in the garden. Has eaten/drunk 1 bottle of medicine

Sour Profitamole: Have 2 Mushrooms in the garden. Has eaten a Red Flutterscotch

Sour Macaraccoon: Have 5 Master Romancer Awards. Has eaten a Cluckles

Sour Cocoadile: Have 16% water. Has eaten 1 Sweettooth and 1 Swanana

Sparrowmint: Has eaten a Buttercup Flower

Lickatoad: Has eaten a Nightshade Berry

Newtgat: Has eaten a Chili

Quackberry: Has eaten a Gooseberry

Horstachio: Has eaten a jar of Jam

Taffly: Buy Tiki Torch/Lantern/Mothdrop Stick and direct Taffly to it (same way you make them eat or fight or romance). The Taffly will fly over it and catch fire, don`t follow it because it will land near the torch thing. Water it with your watering can and it will evolve

That`s all the evolutions I'VE made please comment if you have any more or have a problem with them. These are not guaranteed to work but they have for me. Also feel free to comment if you have any questions about the game, but I can only answer queries regarding Lv9 and below. :D . This is very irrelevant but I want to brag soooooo....I CAUGHT A JELI CAUSE IM SO AWESOME!