This is a very fun game I've played on several other forums. So basically, the person above you... Actually, yhis will be easier:

random user 1: I escape the island while riding on a peanut. I leave a motorcycle.
random user 2: I make the motorcycle fly like in Harry Potter, then fly to a mainland. I leave a pillowpet.
random user 3: I will use the pillowpet as a raft and leave behind a can if spaghetti-o's

And so on. I leave behind a whoopee cushion :3