Usually when I panic or dissociate/flashback, I'm often in my room and reach for a teddy bear. Often the one my boyfriend gave me, it's odd.. the texture of the teddy (it's a rough but soft kind of texture) helps a lot. Same with most other teddies and I think I am finding out that it's the massive difference in texture which helps bring me back and calm me down. Anything that is unusual to touch helps a lot. I also find that stroking my cat or (weird one) scraping my fingernails across the inside of my thumb works too. I find that touching or feeling something to distract myself is what works, so the rough texture of the teddy or the physical sensation of my fingernails etc.