Had a big challenge this week with dealing with Unown. It had 28 different forms. I was debating with just drawing Unown A and moving on, kicking the larger task down the road. Depending the nubs that extend from its core circular eye/main body, it took between 10- 25 minutes each, over taking over 7 hours to complete the entire set.
The main bodies were started off with pencil and a compass, finished the detail with charcoal and eraser pencil. Didn't do any line reinforcement for any of them. Despite the overall length and simple design, was an enjoyable process.