Built-In Desk that maybe slides in and out. This in a library would be a fantastic way to find extra temporary study space
Super-Slim Folding Desks : compact Workstation
Design johanna Asshoff office1 http://www.amerrymishapblog.com/ Desk with drawers, ikeaaaaa
Boomcase Barrel is a vintage barrel turned into the perfect portable and home sound system. Compact and lightweight providing amazing sound indoor and out.
Make Your Own Simple & Cheap Portable Bluetooth Speaker More
Simple 10w Bluetooth Portable Speaker
This boombox is made out of a car radio, salvaged speakers, and two 12V lead acid batteries. Plays for 9 hours continuously!
Rustic Wooden Speaker Box
DIY Internal Bluetooth System for DIY Speakers | Build Plans