A small joke with some friends made me summon this poor little guy up. If you have trouble with ghosts, then why not show the ghosts who is the boss. And pin one down beneith a door.It could probably be used for other things that need wedging, but don't count on it scaring off actual ghosts.Please let me know in the comments how it fits under your door and/or if it actually scared a ghost away. :-)The STL is sized for the Makerbot Replicator build platform with a little bit of space to each edge.
It starts at 0.5 cm tall a the base and is 3 cm tall at the tip of the head and based on the gap the doors I have around here.If you resize it it might become shorter/slimmer and not quite fit beneith your door, so keep that in mind.Print, and sand down any sharp corners so you don't hurt your feet if you bump into it.