These voracious little creatures like nothing more that human teeth, hence the name! No threepenny bits under the pillow from them!
There have been other little meanies in other flicks.
One I remember is Don't Turn out the Lights or similar. There's a dreadful scene where the mother of the household is dragged down the coal chute or something into the bowels of hell. She's dragged by, yes, little humanoid critters that terroriser the family in the house.
The Gate is another. This flick will appeal to rocketry fans. The hero of the piece uses one to slay the band of ghoulies causing havoc and worse in his home. Like all of these films there's a hole, which you really should fill in!
Can you think of any more movies full of little nasty ghoulies?