The hat adapter is a piece of black rubber, round on top & flat on the bottom. There's an arrow on top indicating the front; the round part fits into the hat, & there are slits on the flat part that are formed to fit the top of Scooby's ears (the ears have little nubs on top).The witch is also someone in disguise, so, yes, there's a double-face. The hair is white! BTW, Scooby's eyes are different from set to set, something which I just noticed.
I must have the bats... Are those balloon strings, holding them up? And the gargoyle too (what's the bottom like - how does it attach to the roof?) .. and if the columns are available.. well... The weird klicky is nice too... What's the redish thing on the grave?
The bats are amazing. Those are balloon strings, & there are small pieces that clip on the branches that they fit into. There's a hole on top of the crypt roof, in the back, where one will fit as well. The gargoyle has a hole on the bottom which allows it to be assembled as shown in the pics. The red thing is what PM calls a "grave light." The art on the box makes it seems as if it lights up, but it doesn't, which would've been nice. It is actually the button that is pressed to propel the skeleton out of the grave.
The grave light is a custom in some countries of leaving a candle on the grave of a relative. It's often in a red glass protective container.
Great they did the gargoyle so it can sit on any surface, that one's going on my parts order wish list for sure. Can't have too many gargoyles. The bats being able to fly is excellent too.