Board Thread:Speculation House/@comment-25045079-20140826195207/@comment-4010415-20140828125711

The bunny would be interesting, and it would make sense when you think about how Miles himself was laughing about it when he said it really suits Jaune.

As for the rainbow symbol on his shield...

We had no reason to think it wasn't his, despite the hand-me-down comment. Ruby's symbol is the same scatter rose symbol as the one on Summer's gravestone. Weiss' symbol is the same snowflake symbol that the Schnee Dust Company uses. It's not unreasonable to assume that some characters' symbols are their family crests.