Nikonites t-shirts are on sale for 40% off. It's only for a limited time if anyone is interested. I'm not sure what the one shirt is and just sent jdeg a PM asking about it. The two shirts John has promoted are the aperture blade (choice of black or white tee) and the one with the Nikonites logo over the one side of the chest.
Coupon code: ZVETDAYSALEZ
https://www.zazzle.com/s/nikonites+tshirts
Coupon code: ZVETDAYSALEZ
https://www.zazzle.com/s/nikonites+tshirts