These are the work of an unknown artist. A bunch of paper flowers "bloomed" in the Krog Tunnel several weeks back. I was lucky enough to go through the tunnel shortly after they arrived. Imagine a dimly-lit, graffiti-filled (some good, some not-so-good) tunnel suddenly coming alive with 100+ blossoms. It was genius. I took a couple. I felt bad. But I love having them in my window sill.