For the glory of Satan Santa!
Real answer: Revels got one last year during the AI profile pic craze. Recently N26 got one because someone (Revels?) complained about the blue circle avatars being confusing. Then I kept getting confused between Revels and N26 so got one myself and it’s all downhill from there.
Free AI Image Generator - Image Creator in Bing and ask for “a [colour] orb with Santa hat, sunglasses and white handlebar moustache”