This weekend, I started building a Python script to make a poster using the 2200 kanji included in jōyō kanji list as well as the extra kanji covered in WaniKani.
I'm still experimenting with different ways of ordering and coloring the kanji; for now I've ordered them according to how they appear in Heisig's Remembering the Kanji, and colored them by the log of their frequency in some texts I had.
You can find an example pdf in my github project.