@danieljamiewilliams and we at @conquerinstagram have had some fun working with shirts in the past to great effect.
This design of the skeleton "friends or lovers", (unnamed as far as I remember) was muted as another design that for one reason or another we didn't pursue!
Are you sad we didn't do it?
Anyway, he is a very successful illustrator and now book artist and animator among other things! go check him out and give him a follow. you won't be disappointed.