Following a number of recent peculiar codenames like Beefy Miracle for Fedora 17, Spherical Cow for Fedora 18, etc, the Fedora Advisory Board has been trying to come up with a way to get more reasonable sounding codenames out of the Fedora community.
They don't have any firm plans yet, but if you have any ideas, contact them per this mailing list message. "The Fedora Board is soliciting ideas for how to name Fedora releases from community members. Proposals should be sent to the Advisory Board list no later than 16:00 UTC on 25 July 2012. The community is invited to discuss the proposals on the Advisory Board list."