With the release of Loonyland 2: Collector's Edition, owners can create and play custom campaigns, changing the game world to their liking. A complete list of all Loonyland 2 Add-Ons is available at http://www.hamumu.com/addon.php?code=ll2
Getting Started Edit
A very good way to get started editing your own campaigns is first, read addon_making_info.txt in the addons folder for instructions on the editor, then to copy either Mini Monster Madness or the Original Winter Woods, (see addon_making_info.txt for info on how to do this.) Then fiddle with it. Remember, you will need a profile loaded onto your campaign to test it, and if you edit the room which your profile is currently in, it won't refresh until you leave and reenter.
It is possible to cheat by editing the Winter Woods file, and copying the edited file over the original.