The game's official art book, The Art of Super Mario Odyssey, includes concept sketches for a never-realized scenario where Bowser uses his own version of the Capture ability to possess Princess Peach, who would adopt Bowser's physical characteristics.

The concept art attracted attention online following the book's publication, as it coincidentally predated the creation of Bowsette, a viral fanmade design for Bowser wearing the Super Crown power-up from the Nintendo Switch port of New Super Mario Bros. U. Like the concept art, the Bowsette design mixes together attributes from both Peach and Bowser. The original comic depicting Bowsette was itself a parody of Super Mario Odyssey's ending, Spoiler:depicting Mario going out on a date with the Super Crown-wearing Bowser following Peach's rejection of the two.