One creative father has used his cartoon drawing skills to bring a little humor to his children's lunchtime sandwiches.
David Laferriere has been doodling on the plastic Ziploc bags with a Sharpie marker since 2008 - before taking a quick snap of his handiwork and posting it to his Flickr account.
The graphic designer has now done more than a thousand drawings which range from dinosaurs and monsters to goldfish and ducks.
His children only get a look at the artwork when they open their bags later in the day.
Mr Laferriere, from Attleboro, Massachusetts, explains: 'The challenges are coming up with an idea and then drawing quickly and directly on the bag, every line counts.'
However the creative father's talents don't end there - he is also in charge of making the sandwiches.
Monster art: One creative father doodles every morning on his children's lunch bags