oooh I like the Thai Version! Phra Sangkachai
And it might interest you to know that the Thai lore of Phra Sangkachai is not really to be found in the Pali Canon or its Commentaries.
It's commonly believed in Thailand that Ven Mahakaccayana/Mahakaccana transformed himself into an ugly persona on account of either -
1. not wishing to resemble the Buddha; or
2. to spare the ladies from being distracted by his good looks.
I could not locate either account in the traditional Theravadin sources, but there is a Sarvastivadin account (can't remember the name now) that says that Mahakatyayana (Skt name) transformed himself on account of being the object of Sorreya's lust. The Sorreya story is in the Dhammapada Commentary. I think story #2 in Thailand was likely from this Sarvastivadin influence, but the Thais reduced its scandal quotient by changing the gender of the monk's admirer.