I have created the T-Shirt illustration for the client : Burt's Shirts.
"We've all heard how the dinosaurs became extinct, well I say extinct yet my auntie Hilda is still alive and kicking. Anyway, the real reason the dinosaurs snuffed it was due to their dirty habit, 40 a day didn't quite cut it with their humongous lungs. People will probably say it's rubbish, it was an asteroid that killed them all but what do they know. I'll let you decide what wiped them out. Asteroid or tobacco? Either way smoking is bad and asteroids aren't much healthier."
You can buy it from their site, www.burtsshirts.co.uk or click onto the image of Smoking Kills and it will take you to their page.