Amazon has a great deal on The Da Vinci Code Special Edition DVD Gift Set for only $9.55, and it ships for free with Amazon Prime or Super Saver Shipping!  This gift set comes with a cryptex and black light.

Amazon Prime members get FREE 2 Day Shipping on all orders. The membership costs $79 annually but makes sense if you do a LOT of online shopping. Or you can also take advantage of free memberships to Amazon Mom and Amazon Student.