Cheap coral frags in bulk?

[GGhana]

I'm trying to decorate a nano reef just under 5 gallons with some corals. I don't particularly care about any specific type of coral but as this is a bit of an experiment I'd prefer not to spend too much on coral. Anyone know where I can get lots of different cheap corals for <$20 per coral?

 

[Spare time]

Try local reefing groups or Facebook groups. A lot of lfs have a bunch of cheap tiny frags have fast growing coral that no one wants.