I'm with Questions. If dinosaurs are your kid's thing, include it.
Just remember that you're not trying to demonstrate that your child is "merely" gifted, but that your child is HG+, or beyond the ability of the current testing instruments to get an accurate read. To me, that's the key question to ask yourself when it comes to what to include: does this seem to me to be MG or is it HG+/PG?
I freely admit that's a tough question to answer much of the time, but I think it helps to keep you from including things that are not helpful.
