This was for Cartoon Network Upfront. Where Cartoon Network shows off it's stuff to advertisers. Up above is a giant inflatable Jake and that's the creator of all things Adventure Time Pen Ward.
Check out today's new episode "Go With Me" where Finn get advice from Marceline on how to pick up Princess Bubblegum, let the sitcom antics commence!
I also like this Fake Human from Susan Strong. Is Susan a fish person or a real human?