Exhaust seen – searched … wanted!

Hoi Folks, have seen a moped on the water dome at Friend Ship Ride, which had an absolutely horny exhaust. I want that too! Does one of you know that? Has anyone ever heard of it? Is that a suitable entry? Unfortunately, I could not find the driver to the pock or find him to ask questions or hear the sound, but only the optics ….. sultry! Take a look at pictures and let him know – thanks!