γ―γγ姫 bowsette εΊε·΄ε§¬
A fan transformation of Bowser using the Super Crown, based on Peachette.
Initially appeared in a comic (post #3259475) by ayyk92, and started the whole Super Crown transforms craze.
Bowser's similar fan transform stereotypically has:
Her Japanese name is γ―γγ姫 (Koopa-hime, lit. "Princess Bowser").
Other early names were Bowserette, Peacher, Princess Koopa, Peach Bowser, Princess Bowser, and... Beach.