There is no link nor is there a regular stock of Team Titleist items on line. On occasions, the staff will offer a limited supply of something by posting a temporary link to a forum post. If you actively watch the site, you have a good shot at purchasing something when available. They also occasionally do random mailings and sweepstakes. Another option is to attend an event like a regional TT outing or one of the bigger TT events. They usually have a few gifts for participants. You can also do the Ball Plant Tour where they have a small gift store.

Back in November they sent an e-mail with a link to purchase a white hat with TT logo on the side. I just happened to find the e-mail and the link was still active and it said in stock. Maybe look back to see if you happened to receive it. Good luck!