Lazflamme LOUD: http://www.mmorpg.com/giveaways.cfm/offer/245/CosmicBreak-Free-Gift-Key-Giveaway.html
Katana Max: http://mmohut.com/giveaways/cosmicbreak-limited-edition-golden-katana-robot-giveaway
Maril March Trill: http://www.gameogre.com/reviewdirectory/reviews/cosmic-break.php
It should be noted that only one of these codes can be used; using one invalidates the others for that particular player account. In other words, only one freebie bot per player.
I'll probably get Maril, since I used her a lot during the first open beta.
This'll be the final beta, moving directly to official service (with no wipes) a week later, so I'll be sticking again with the DOS faction.