The red between the bones on the fountain and base is our old standard Great Stuff which is excellent for holding it all together. I painted it deep red with gloss craft paint. That was the most time consuming part. Luckly my son was more than willing to help out this year. Here he is working on it:
I wanted to add more bits and pieces of bones and guts or maybe drape creepy cloth or even bits of shirts among the guts but ran out of time for this project.
Next year I may build a large three legged bone tripod to lift the whole thing up of the ground.