Free Illustrations Well there are free illustrations when you buy one of our t-shirts from our online store that is. Always looking to give a little extra we decided to add a small illustration with each purchase. Most of them are doodles as it were , as I draw whatever comes to me on the spot. Most of these free illustrations are created with pen and a good majority are skulls! I’m not sure how long we will create these for so grab some tees while you can.