Artist Brian Lai has created a unique set of X-Men sketches that double as optical illusions. Lai sketched several pages of the character Wolverine from the X-Men franchise as characterized by Hugh Jackman as photo negatives. When photos taken of them are reversed, the actual images show on the canvas.

These sketches are a unique and difficult piece of art to create, but the effort in getting all details show in the eerily accurate portraits that almost look realistic. Lai had to sketch all of the features details with the opposite shading, something that would have taken a lot of focus to get right. These X-Men Sketches of Wolverine are truly a wonder to behold, and are remarkable when you see the real sketch of Jackman's character from the films.