They do make custom tables, lamps, wall clocks, etc.. that can take a AR!
http://www.instructables.com/id/Hidden-Drawer-Safe/
http://stealthfurniture.com/
And you can make your own fake air vents, fake electrical outlets, light switches, etc...
If you have lots of computer books, paperbacks, use one and put it with all the others. Who looks at books entitled, "Java for Dummies".
Deaf