I have a couple of frogspawn. It doesn't look like the normal heads they put out. I'll try to get a better pic really quick. I'm assuming it's some sort of LPS but I can't find a thing on it. There's 12 or so polyps on this rock that are on the top, bottom, sides, etc. There's one on the bottom that's a little bigger and the "tube" it's in is around 1/4 of an inch long. It looks like a little anemone that's growing out of a rock tube.
Here's another pic. Maybe just a little bit better.