As a fan of the podcast, and of Kaya in general, I think it would be a cool little memento to show us the poster that started it all.  

Also,  if he feels ok with it, he could sell it/give it to one of the other members of the podcast.  

In general, I think it would just be a cool thing to see something that is talked about so much, and to finally reveal so many years of facials to the public.