How To Create A LEGO Optical Illusion | Lego Tutorials - YouTube
Alex Bellos on Twitter: "How did @ScienceMagician create this amazing illusion? More great Lego-based optical illusions in my Monday puzzle column today https://t.co/mtzHAQVQ2z https://t.co/2wB2aZ6uOp" / Twitter
This LEGO riff on Van Gogh's famous self-portrait is a great optical illusion | Boing Boing