When I was younger (age 4 to 10) I always had the same nightmare. Something realistic would be happening, like my family would be sitting in the living room during winter and it'd be pouring outside. Then, after a while, a zeppelin would start coming from afar. The skull kid from Majora's Mask would be trying to get me onto there and my parents would be fine with it. For whatever reason, that zeppelin was distinct in terms of like dream-feeling. Whenever I saw it in the distance it would instill massive fear into me. Then around age 11, I just saw it and was like "okay. Whatever." and I've never had the same dream since.
Now I just have dreams about actually doing well in high-school and not doing the most retarded shit while being there.