http://www.parylene.com/parylene/about_us/tshirt.shtml

Appears to be geared towards businesses only...

We're giving away free Para Tech Coating tee-shirts!!! For every request of PTC literature or information, we're bundling it with a shirt of your choice (red or blue, polo style or regular). Please provide us with the following information so we can tailor our response for you. You can also e-mail us!