Something has come to mind, and it kind of bugs me. I always thought that LeChuck had stowed away his voodoo trust charm belt buckle on Spoon Isle after having killed Guybrush and captured Elaine, but someone on the World of Monkey Island Wiki
doesn't think that the dead seagull and the fireflies are on Spoon Isle where the voodoo trust charm is. He believes that the voodoo trust charm is in Flotsam Island based on the fact that there are fireflies in that jungle. One thing I noticed is that the fireflies in the jungle in Chapter 5 have made a yellow glow, while those in Chapter 4 have made a bluish-white glow. And yet these Flotsam jungle fireflies never leave the jungle. But I can't tell the difference between the fireflies with the white glow (Chapter 4) and those with the yellow glow (Chapter 5). Are they different fireflies? Based on these fireflies, in which island is the voodoo trust charm stowed: Flotsam or Spoon? Maybe the creators or someone else at Telltale Games knows the answer.