Anything Disney would be great of course, especially anything directly from the parks. It's a Small World is a given (if you can tolerate it, haha) but my favorite is probably The Tiki, Tiki, Tiki Room.
I went through the same dilemma. I had made several videos from previous trips with all Disney music. But for this trip I went about 70% non-Disney and 30% Disney. I think it was good blend. There has been tons of good suggestions here, but feel free to watch what I came up with and hopefully it may give you an idea or two. Lots of sweet, funny and tender moments (one in particular in the middle that tends to bring a tear). And the music can either make or break the mood! If there are any songs you like, but are not familiar with feel free to holler.
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