I think this may be the house:I saw an article somewhere on how he does it. If I rmember correctly, he makes his face up to look like a pumpkin cutout. Then he records himself as each pumpkin singing the song. After all the editing and stuff, he projects the finished film onto the surface.
The last video of his I saw (which I liked better) was his home haunt. It had ghosts zipping along the front of the house and some large bags on the front lawn that "became" the pumpkins.
From one of his posts: "Crummy Sharp Notevision. 1200 lumen LCD. Amazing what you can do with event the wimpiest projectors." From Googling, looks like a grand. Not a cheap tool...but what kind of projector would you need?
Are there cheap ones?
Yep, that would be one example of a filter.I dont know about filters, you could just turn the contrast up and brightness down.