http://store.sigsauer.com/

Not as awsome as the Glock free stuff posted by Dolomite, but  better than nothing.

Spend $100 or more at the SIG Store and receive a FREE Signature Gift Box Set and FREE shipping on your entire order!*

Signature Gift Box Set Includes:

Branded deck of cards
Mini P226 keychain and holster
Set of three SIG stickers
Set of three SIG PVC patches

*Terms and conditions: Cannot be combined with any other offer. U.S. customers only. Offer starts May 21, 2015 and ends May 22, 2015 at 11:59pm Eastern time or while supplies last. No phone orders. Order online only at store.sigsauer.com. SIG SAUER reserves the right to discontinue all offers and promotions without prior notification.