Tattoo permission

I have been asked by hundreds of people for permission to get my work tattooed. Before I would say no, but take commissions for a similar piece. As I get so many questions about the same image, I am now accepting $$ for permission to get it tattooed for those who want the piece badly and also want to support the original artist.
This is only for permission and NOT for a digital copy of the work you're interested in getting tattooed. I do not have scans of all of my work.
THIS PERMISSION EXCLUDES ALL IMAGES THAT ARE CLEARLY STATED ON SOCIAL MEDIA AS COMMISSIONED WORK.
I do ask that if purchased, the images you put on social media will be tagged with scoobtoobins.
Thank you!