Looking for solo kinks

Hey, I’m looking for suggestions on kinky things you can do alone. I’m in a relationship where my bf is a bit more vanilla and is very slowly warming up to some of the more fun stuff. I wanted to hear if anyone in here had some good suggestions on some solo stuff to try out while we work on what he is into. I’m very open minded and have very few boundaries only things off the table is scat, and anything with blood.

Thanks in advance, hope you have some kinky ideas.