Bucket of ooze and strange island?

What is the bucket for in the market place? And I've found a couple of cavenrs looking for an Emerald and coin. What are those for? I'm very confused.

Solved: Thank you very much

I bought that bucket, i think it's for halloween :3

The bucket is for the halloween event. You pick up a platypus bear egg from the Earth Kingdom and inject it. It may either successfully turn into a zombie or die.

The emerald amulet and ancient coin is part of the Lion Turtle quest. You need an adult Dragon or adult Sky Bison to do it. After that, go to the little green island. Then go to an island on the east side. Next you go to another island on the west side and lastly, you go back to the little green island.