Amazing Fletcher Capstan Folding Table

Another round table that is ingenious, pushing it like a merry go round will spin it into a small or larger round table so you could have a few people sit there or many. I wonder how much something like this would cost or if it could be made at home (if you had the blueprint)

Collapsable Round Table

An amazing round table that expands from a four seat table to a eight person table in a matter of minutes. 

I have no idea how to make something like this or where to find the plans but maybe an inventive woodworker could make something similar.