If at one point you were really into playing Super Mario, a good idea for a costume that has a bit of retro appeal would be a Princess Peach costume. Or maybe you were never into playing it, but would like to catch the attention of a big fan of the game. In that case , a sexy version of the costume might be in order. Make sure your costume includes a brooch, and of course, the iconic Princess Peach crown.
I like fabric crown of this version of the costume – in fact the whole thing is quite nice, I think:
Sexy Princess Peach Halloween costume:
Sexy Princess Peach Halloween costume pictured: 3WISHES ‘Video Game Princess’ Costume Sexy Video Game Costumes for Women