I know some methods.
1st: I can draw it on a paper and then trace it in Illustrator.
2nd: I can draw it with pen tablet.
Maybe anyone knows other methods?
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I would recommend that you go into a program like Inkscape or Illustrator and "draw" the image with curves. Then, once you're done with the lines, ever so slightly manipulate the lines so it has all of those little perfect imperfections. This is what I got after about 5 minutes:
I only got to the outer edge of the screen, but hey. Its 5 minutes.