Happened just before I left my last account almost nine years ago, I zapped my skin and didn’t like it. Just curious, in case the holiday blows over and I don’t like my skin.

You go to your Wardrobe, click the skins tab, and then click 'clear current skin'. :)

You also no longer have to keep your skin past the end of the event in order to keep them. Once you unlock a skin, it's unlocked permanently and you can put it on and take it off whenever you want c: