Farm - In the upper right corner of your farm use the hoe to dig around for it
Mountain Pond - Throw a large fish into the small pond next to the fisherman's tent
Mountain Pond - During winter use the level three hammer to break the rock at the corner of the small pond
Mine - After mine opens you have to go down 3 levels to find it
Flower Festival - Purchase for 1000 Gold from con man in upper right corner
Egg Festival - Receive if you win the first egg festival
Mountain Pond - Throw both a small and medium sized fish into pond next to Fisherman's tent