Printing a t-shirt isn't that hard....finding an artist and a good design or subject is.....I have found from past experience that a design in a circle form shows well on a t-shirt/sweatshirt....also limiting the print to a 3 color ink design, using the color of the t-shirt as the fourth.
One color t-shirts just don't make it....it says I'm cheap....adding colors is not much more and provides a better looking shirt/design. A white, ash, sports gray are the easier colored t-shirts to print on, a red or a black are harder...you need a white underlay first on all colors then print color on the white. I would imagine being "chicken Krazy" , one color a t-shirts should be is yellow's...perhaps from different t-shirt mfters....so you get 2 yellows.
The company screen printing must have an automatic press....these machines print excellent....no hand screening. Buy a 6.1 oz. Cotton t-shirt no 50-50, buy larger sizes....it's easier to put someone that would normally buy a medium into a large and so on. I personally would us a character like foghorn leghorn or version of as my spokesman on the shirt...I have been a manager of a screen printing company, personally selling over 400,000 shirts/year.
A good looking t-shirt sell....a poor one gets shipped to the third world.
BYC, where we all start the race as an EGG!
HappyHatch'en