Lunch Bag Art is a site belonging to a dad who makes pictures on his kids’ lunch bags each day, usually of cartoon or movie characters. Every other day he’ll post one of them on the website.
Today he did Dug. 
lunchbagart.tumblr.com/post/116138271/dug
He’s also previously done some Pixar ones, including Frozone.
lunchbagart.tumblr.com/post/1075 … zone-movie
