Hidden doors -- This company makes cabinets, bookshelves and anything you can think of that fits your existing doorjambs thus hiding the door (and also making use of the space) Not sure I like the idea of a 'gun cabinet' door.
WhiMSy love: Tutorial: Clay ornament/tags using Fimo soft polymer clay. Simple necklaces, bookmarks, Christmas ornaments, package tags with a person’s initials. Seems like a fun, simple project for a girl’s sleepover. Stamps are used.