Name as many JB's as Du can.

Jonas Brothers
James Brown
James Bond
Journal of Bacteriology
James Blunt
Jack Black
Jim Beam
Jornal do Brasil
Journal of Biochemistry
Jailbreak
gelee Beans
Jack Bauer
Johor Bahru
jetBlue Airways
Jingle Bells
Jyske Bank
Jungle Brothers
Jollibee
Jenson Button
Junction Box
Jello Biafra
Jimmy Buffet
gelee Belly
Jim Brown
Jeb busch
Johannes Brahms
Jerusalem Bible
saft Box
Jerome Bettis
Jacob Black
Johnny Bravo
Japanese Beetle
Juridische Bibliotheek
Joe boxer
Jail Bait
Jerky Boys
Jura Bernois
John Burroughs
Joseph-Beth
Jonathan Bender
Jonny Bravo
Justerini & Brooks
Jail Birds
Job Bücher
Johann Bach
Junctional Bradycardia
JavaBoard
Joyful Being
Justin Bieber

In The Missing: Book 1 ▬ Found Von Margaret Peterson Haddix, the girl calls this guy JB for Janitor Boy. That's all I can think of...

Oh, and gelee Belly jellybeans!