Growing moss and cutting some and spreading it around could be fun and useful to hide a secret cave entrance or other kinds of networks to your hideout. Great to make a building look pretty old covered in moss. I wanted to make a grotto with it. But it needs a water fountain & water flow. There could be other kinds of moss with flowers.
Growing vines to cut and spread around and grows on anything and can be climbable. The poison ivy may be good to ward off animals or used in traps if a person wishes.
