Making a feature film, looking for a few particle-type effects

Hey all,
First time posting here. I saw some Hitfilm samples of particle effects which looked very good.
I am looking for a couple of similar effects for a horror anthology feature I am making.
The two effects shots are similar- imagine "particles" moving on human skin in two close up shots.
So it would have to be mapped to the contours of the skin in question to appear to be moving on the skin.
Shots would be about 7 seconds each give or take.
You will of course get screen credit and some monetary compensation for your work.
Interested parties post here and I will show and tell you exactly what I am looking for.