I actually have a few longboads myself…one of my favorites being what’s branded as a “Flexdex.” It’s made of a indestructable composite deck that you can bounce on (and run over with your gas-guzzling SUV but won’t break). It’s overall length is only 29 inches and it zips around. I do also have a few other longboards, one known as a G-Bomb which has quick release truck angles so you can tweak your turning/stability and the other a standard longboard with an amazing graphic on top and Hawaiian beach sand for the grip.
Then I only used it a couple times as transportation but otherwise messed around in the parking lot…that is the “Wave Board” which is a 2-wheeled skateboard-like device that propels via weaving back and forth in a snake-like motion.
Lastly, (which I want to fix up and try out) we have a Skate Bike laying around. Back then I had difficulty trying to ride it but I’m sure now it will be a piece of cake.