Web landing page:

NO PURCHASE NECESSARY TO ENTER OR WIN. A purchase will not increase your chances of winning. Open to individual, legal residents of the 50 US and DC, 18 and older. Sweepstakes ends 9/30/15. Participating brands: Sharpie, Paper Mate, Mr. Sketch, EXPO or Uniball . Subject to Official Rules. See Official Rules for details on how to enter by mail without purchase. Prizes will be awarded as a payment to a qualified 529 College Savings Plan. Odds of winning depend on the total number of entries received from all methods of entry combined. Void where prohibited. Sponsored by Sanford, L.P., 3500 Lacey Road, 10^th Floor, Downers Grove, IL 60515.