OOF is the latest "official tangle" from Rick and Maria at Zentangle. If you missed it, you can see instructions here, on their last newsletter. Oof is really a fun tangle that has so many variations and possibilities. Although it did take a little practice to get it down, and you definitely need to follow the instructions until you do. The diva's challenge this week was to do a tile using the new tangle, OOF. I started my tile with a large OOF and then filled it in with smaller OOF's (one half-done), and then added different variations inside each. Another fun tangle & challenge!