There are about 30 boxes to be found on the Cupcakes sim. You get skins, clothing and lingerie. Plus goodies from other stores there. And boxes are easy to spot, so no headaches for you. Just go get the prizes, they are awesome!
Styling and SLURLs:
All skins and clothing: Cupcakes
Hair attachmet: Roxy in Mocha by Amacci (worn with Amacci hairbase)