I saw a device and do not have any idea about what it is called. It looks like a carpenters horse. The top is made of highly polished wood, and the rest was made of a lesser grade. It is placed under a subs crotch so that when they are chained overhead they have to stand on their toes in order to avoid having to sit on the wood(A thin piece).

I am building one using mahogany and pine, it will look good when I am finished, but I have no idea on what it is called. Anyone know??