Cute as the Tauntaun trophy is it does represent so much of what is wrong about ROTJ, sticking stuff in because they have paid for it already makes sense in terms of saving money but if Hoth was meant to be the middle of nowhere how the hell did that head get there.
It makes the Star Wars universe a much smaller place and kind of takes you out of the moment and yes I did notice it when I was 13 because I had been inspecting every publicity photograph I could get my hands on for months before the film came out.
The same with bloody medical droids in the briefing room.
Boba Fett appearing in some capacity in the film pales in terms of how those little things grate for me (and they are easier to remove too).
It looks like a joke photoshop job (like sticking an Alien skull in Predator 2).
As for the Rancor and I'm probably talking out of my....erm....chair here but would it be possible to remove all the minature elements from the live action and double the frame amount by inbetweening slight changes between duplicate frames and then speeding the footage up to give the footage more life and then recombining it?
The shots with the giant hand and the model together still lack a certain weight and depth though the DVD did go a long way to improving things.