What do you think of the idea of a "Where;s Waldo" deco for our island?
We can be able to place it somewhere on island, and "attach" a price to it. First one to discover it can claim the price. (this way, people can also help find collectibles )
Island should have a way to notify if price is active (like Zone-wide buff Waldo) and what is the price, so people know which island to search.