Pre-orders from the original Scribblenauts earned some lucky fans a replica of Maxwell's "Rooster Hat." For Scribblenauts Unlimited, Warner Bros. and 5th Cell have escalated the situation to one of three different hats. Pre-ordering the game at GameStop will get you one of the three Rooster Hats above, in classic Maxwell red, pink to match the hat worn by his sister Lily, or blue like Maxwell's "doppelganger."
GameStop will also offer a 3DS bundle with the game, a Maxwell silicone case, and a pencil-shaped stylus.
[Update: The PC version had previously been announced by WB. Our apologies.]