youtube.com/watch?v=-wVADKznOhY

I so want one!
But where would you put it? It’s not like you can fold it up in the wardrobe.
Derek, I believe you found this video with the search query “trebuchet rich guy dead horses”
Please don’t crush my dreams with reality.
I used to have a small (home made, of course) trebuchet in my front garden when I was a student…
For an idea of scale, the weight was a 20L bucket filled with cement. 
It threw flour bombs a looong way.
I also remember seeing footage of a trebuchet throwing cars and a double-decker bus (!), but I think that was on tv…
I made one for an event some years back. We had four siege weapons and threw arm loads of grapefruit at each other. I was getting about 80m without any real effort. We tried adding extra people as weight which was pretty exciting 
I have an engineering essay all about the design and calclation of the length ratio in a trebuchet.