At the moment, Vanity Smurf is available for 1500 coins in the Smurfberry shop, but this is only a temporary discount. So it is important to buy him as soon as the discount lasts. Vanity is stationary as well and gives 150 XP a day, indicated by a mirror sign above his hut. You will gain XP once you tap on his hut.
Vanity Smurf does not have his own mini-game but has a photo studio, where a typical white Smurfs' hat can be added to an existing picture. Once done, the photos can be either be uploaded to Facebook (if connected) or saved in the iPad's photo library.