If you took our advice and ordered your copy of the 2012 Home Haunter DVD Collection then you’re already familiar with Steve’s Haunted Yard and have probably already seen his above ground tomb with the moving lid.  If you missed it, though, (and trust me, there’s a lot of cool stuff worth seeing in his cemetery), you can check out the tutorial he’s been kind enough to post on how it works.  It’s a simple build and it looks great when it’s moving.  The tomb itself looks to be made of 2″ styrofoam insulation and has a wiper motor mounted on the inside.  You’ll need to rout out a small hole in the styrofoam for the glide to properly move the lid from side to side....