Patch suggestions for a project

I was doing this kinda project a while ago where I wanted to make a patch for every letter but I kinda forgot about after some life drama and I recently found it and I want to finish it. I’m drawing some blanks on what to do for the missing letters, so any suggestions would be appreciated. Or any replacements for the letters already done are ok too.

Most of my current ideas are disability and mental health based, but I want to state that I’m open to any suggestions.