Deluxe 3/4 Solid Top Double Bass + Case by Gear4music at Gear4music
Double Neck Electric Guitar 4 String Electric Bass+6 String electric Guitar | eBay
NS Design Electric Upright Basses - Full Size Bass (WAV, NXT, CR)
Carbon Fiber Double Bass| Luis & Clark Instruments
Elvis' 1965 Gibson EBS-1250 Double Bass
Watch this guy majestically shred on a double bass - Classic FM
Double bass - Wikipedia
Amazon.com - The Band Room 4 Double Bass Storage & Transport Cart for Music Classrooms | Great for Music Teachers | Holds ¼, ½ and Even ¾ Size Double Basses | Made in USA