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YouTuber pinkierockspeace asked me to show how to designs a cool signature. That's hard. Each signature comes from the person that owns it, but here's a video that shows the thought process I'd put into doing a cool signature. Hope it helps.
In this video I use Rotring Tikky pens and pencils and Rotring drawing instruments. The paper is cheap photocopy paper.
Find out more about me and my books at my website http://www.shoorayner.com. Look me up on Amazon or in your local bookstore. I've illustrated over 200 books in my time! Enjoy!