Hey my friend made this awesome group that is all about the Ice King's Crown!
~A group for Adventure Time fans who are fascinated by the sinister crown that drives its wearers insane with the power of frost...
What is accepted is art and writing of the the 'royal family' created by the crown, which in canon currently includes Simon Petrikov, the Ice King, Ice Queen and Farmworld Finn, the Ice Prince.
Art of non-canon royalty chosen by the crown is also accepted, i.e. an AU where the main world's Finn falls to its power, Fionna, etc.~
So if you like to draw fanart of peeps of AT possessed by the crown then this is the group for you!