I've been waiting until Halloween to tell you about MAC's Venomous Villains collection, which channels the delightfully wicked Disney villains Cruella De Vil of 101 Dalmations, the Evil Queen from Snow White, Maleficient (the scariest of them all) from Sleeping Beauty, and Dr. Facilier from The Princess and the Frog. The collection launched back in September, internationally at the beginning of this month, and it's quickly selling out. But in the spirit of my favorite holiday, I'll be giving away the Evil Queen set to a lucky Tumblr or Twitter bug.

Evil Queen

Eye Shadow ($15.50) Vile Violet Deep dirty blue purple (Matte) Vainglorious Bronze burgundy (Frost) Her Alter Image Light violet (Veluxe pearl)

Lipstick ($15.50) Sinister Soft brown plum (Lustre) Toxic Tale Bright coral (Satin)

Lipglass ($15.50) Hot House (Deep raspberry with pink pearl) Strange Potion (Soft coral pink)

To win: Simply Tumblr this post from the BlackBook Tumblr, or retweet this post before Monday, November 1st, and we'll create a ballot for each time you tweet or Tumblr. Then, we'll put those ballots in a hat and choose a winner at random. Happy Halloween!