Epoxy and Hard Head coloring

Anybody have a source for epoxy-specific colorants?

Using lacquer results in lower viscosity and for patterns using big blobs of
the stuff, like MOE crabs or bonefish bitters, it's a pain I would like to
avoid.

I really like Hard Head better, *BUT* tinting it with acrylic, I wound up
way too thin again. TIA L.C.