I was given two 100 count bags of white grubs. Anyone have a recommendation on how to dye some of them a green/black/craw color? Looking for a more natural dark vibe.

Maybe food coloring? Just and idea...

You could try putting them in with darker baits and hope that color leeches into them. Or you could by some sort of dipping or coloring markers such as spike it to try to color them yourself.

White grubs work.   I'd run them.

If you're going to try to make one of a kind, unique baits, RIT dye comes in many colors, they can be blended, and it is relatively cheap,  paint brushes are cheap at Walmart.  I'd buy a whole bunch of plastic shot glasses so that you can blend small amounts of dye.

2 hours ago, webertime said:

White grubs work.   I'd run them.

I agree but I have so many I want to dye some.

Big Sharpies and after you apply it, it will run like crazy through out the plastic.