Okay, mushrooms are apparently very hard to come by in the used market. Since I am not mister money bags I decided to take on the task of building one rather than forking out $250+ for a new one. Here's how it went...
I went to Lowes and asked one of the guys working in "electrical" what they did with the empty cable spools when all of the product was off of them. He said, "Shoot... we throw 'em out." Since they had one with about six feet of cable left on it I convinced him to let me take it which he did.
Once I got it home I took a 2X4 that I had in the garage and cut it into pieces that would fit between the two sections of plywood. I nailed them in place and tested the stability of the not quite finished product. It is very sturdy and will support my weight effortlessly.
Next, I had to figure out a way to create a mound on the top of the base that would allow me to add padding. So I purchased a piece of plywood from Lowes and cut 3 separate circles with a jig saw that are each 5 inches in diameter smaller than each other and attached them to the base with wood screws. Here is a picture of what it looks like before the padding and vinyl.
I will add more pictures tomorrow of the finished product... assuming I am able to finish!
Let me know what you think.