Not sure about the Grenadier ones but you still seem to be able to get the Metal Magic ones em4 Miniatures - Dunwich Detectives.
I had painted most of them but the majority are not that well done to be honest! I took a few photos of some of the horrors though as they are a little more passable...
A Star Spawn of Cthulhu and some degenerate Deep One allies.
A Nightgaunt, a Ghoul and and a Yithian.
Two scheming Serpent Men and the wonderful Dark Young of Shub Niggurath.
A Byahkee, Mi-Go and rather sorry looking Hound of Tindalos.