I'm only 12 hours in (level 15) so im pretty sure I have a while to go before I see them.
You're deeper into it then I am (time wise). Odds are you've seen some. Stuff like armor that makes lock-picking easier or a gun that makes your 10mm rounds cause frost damage. It's clearly a Skyrim item system on top of Fallout.
It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shakes, the shakes become a warning.