Lafitte's work is on display inside the Starbucks opposite the British Museum in central London.
He gets daily requests from fans who come to the museum hoping he'll produce a cup for them.
He told Metro: "I love seeing people’s reaction to my drawings. I enjoy the joy and surprise on their faces."
Some designs take up to 40 hours for him to complete.
He tells BuzzFeed he would love to see his designs become real ceramic cups on day.
You can see more below and on his Facebook page.
