this is where they got the mug from. it's a site where you can put the design on any surface, plus it lets you customize the size and placement. I should note that they customized it to be offset towards the bottom like this and also facing out when being held in their right hand, if you would like to recreate this mug https://www.zazzle.com/when_you_see_birds_flying_t_shirt-235993297424489104