Not sure if this is the right place or not, but the blip shift shirt of the day is the GT350r. The shirts, for those not familiar with the website, are one of designs and only available for a 48 hour run. Occasionally, they'll re-release an old design, but not very often.
Crowdsourced car shirts, apparel, and accessories created by fellow auto enthusiasts. New tee designs available every day, only for a limited time.