On Ice Age: The Meltdown I was working in the modeling department and got the chance to build a suit of triceratops bones that Sid would fall into and wear (with a septer that had the skull of a dead beaver kid) to scare off the mini sloths. This suit gag was cut from the film so it never got used. I was sad.
Then one weekend I was working OT on the sequence and mi amigo Dan Lopez came over and was like "It'd be cool to throw in some bones down in that pit of death.". I agreed, (he does have an amazing sense of design after all) so I went into my old bone monster suit, ripped it apart and and created this set up. It's on screen for about one and a half seconds but I think it looks cool. I especially love the little dead beaver kid in the bottom right corner.