Just what every Hitchhikers fan needs -T-Shirts & Apparel : Don't Panic & Carry a Towel: " 'You just come along with me and have a good time. The Galaxy's a fun place.' Sometimes, when you're traipsing across the galaxy, what you need is a little reassurance. Just look down at your shirt and feel better. Well, that would involve mirrors for it to help you, so it'd probably just be easier to make a friend wear this shirt. $15.99 - $17.99"