I've decided after making a few heads & limbs from paper mache that I want to make a prop that moves instead of several that are static. Right now I'm looking at making a grave grabber with a wiper motor. Now the thing I'm wondering is will any wiper motor work or do we have to buy the ones from the online webites? I'm asking because we have several cars we are getting ready to junk out ( demo derby & dirt racing) & if I can make those wiper motors work then I cosider that a FREEBIE. lol. So if any of you have used a wiper motor not bought from monster guts let me know.