[jjjnettie (Jeanette)]

This was mentioned on an American astronomy forum.
It is an Australian idea of course.
The cheapest adjustable observing table you could get...
An old ironing board. You can have it at waist height, thigh high, or lower it to only a foot off the ground.
It is such a simple idea.
You can pick up a 2nd hand one for about $5-$10 at the Op shop.