BR-3R was a LEP servant droid that was often used to assist Jedi in the Jedi Temple during the Clone Wars.
The designation of "BR-3R" and the fact that the droid was referred to as a "rabbit" were evocative of the character of Br'er Rabbit.
The designation of "BR-3R" and the fact that the droid was referred to as a "rabbit" were evocative of the character of Br'er Rabbit.