As many of you know, I am always looking for some novel piece of equipment I can build to run with my model engines. Nothing overly elaborate, but not something as simple as a Ferris wheel. It has to be something with good visuals. Whatever it is has to be visible as working within a three minute window, as that is about the limit of time people will devote to an on-line video. Last night as I was trying to go to sleep, I thought about a machine that blows up a balloon. Great visuals, color of my choice, and fun. It would have to be a piston style compressor with a fairly large displacement. (To fit into the 3 minute time window.) I'll have to think on that one a bit.