Talk:Penguins/@comment-28288426-20160527015114/@comment-10336-20160527034029

You should not have much problem getting non-Rainbow ones, they drop during missions and fortnights. If you really need them, see where you can farm them on Drop x 2. For Rainbow one odds, see User:Piotrus/DropRates (data collection still in progress, seems within the range of 10-25% boss poster drop chance).