Harbor Freight Tire Changer

I use mine a lot. Its flimsy and basic. I put thread inserts into the concrete of my shop floor to bolt it down. Then I can just unbolt it and move it out of the way.
Works great for all the junker cars I have just to keep some tires on that hold air.
Not ideal for nice wheels since it will scratch the heck out of them.
There are videos on youtube how to modify them. Lots of great ideas or just build your own out of better metal.