Gabriel Nkweti Lafitte is an artist and barista who works at the Starbucks across from the British Museum in London. He takes the chain's "name on a cup" policy to the extreme with custom, hand-drawn line art. Some are so intricate they take as long at 40 hours to complete. Starbucks tells Metro U.K. "it's fantastic how he takes our iconic cup design and makes it his own." Here are some favorites; there's full gallery on his Facebook page.