Cleaning molds & material

What do you guys use to clean off residue from PVA and epoxy that leaked onto the original part?

If the epoxy is cured you can try a wooden popsicle stick, rub the epoxy off.
PVA washes off with water.

x2 ^. I just scrape the resin off with my fingernails or take a very high tacky tape, tape the mold, and pull the tape off. That seems to work when you do sections at a time. With PVA, I just wipe it with a wet rag then rinse the mold.