I'm getting back into more gymnastics-styled fitness and decided to fabricate some training equipment. Practicing circles on a pommel horse is a great way to workout groups of muscles dynamically. Since I cannot afford an actual pommel, or even the practice "mushrooms" I figured I'd try and make one on my own. I scoured the internet for tutorials and wasn't able to find any so I just winged it. Feel free to loosely follow my instructions and add, subtract or modify as you see fit. I'm sure there's an easier, more effective and probably cheaper way to make these and I'd like to know how to improve upon it, so feel free to share your input.
An adequately sharpened pencil
Piece of string at least 16" long
Staple Gun and staples
Box of 3" and 1 5/8" screws
Circular saw or Chop saw
Sanding device (I used a Metabo Compact sander with a rough sanding stone and 220 grit sandpaper)
Two sheets of 3/4" plywood 24" x 24" (~$6 from Home Depot)
4' of 4" x 4" (7' piece ~$7 from Home Depot)
12' of 2" x 4" (7' pieces ~$6 from Home Depot)
24' of 2" x 6" (8' pieces ~$6 from Home Depot)
12' x 1' of outdoor carpet (~$19 from Lowe's)
36" x 9' of rubber carpet padding (would've been $38 from Lowe's, but it had a couple holes and I was given a half-off discount, schyeah!)
4' x 4' of vinyl fabric (faux leather, you can get it cheap by the yard from a fabric distributor)
Since I already had all the tools I needed except for some screws, this instructable cost me approximately $90, which is by no means cheap, but if you search for them online they sell for anywhere from $250-$400.
Note: When completely finished this sucker weighs....a lot. I would assemble it where you plan to use it, and if you absolutely need to move it, turn it on its side and roll it. I am not responsible for any bodily harm including hernia, constipation, rug burns, or shattered expectations resulting from performing the outlined steps or while using the mushroom. Play safe.
Step 1: Cut the Base and Top Out of Plywood
1. Tie a piece of string to your pencil.
2. Measure the length of the string to 12".
3. Use a thumb tack to fasten the string to the center of the piece of plywood.
4. Pull the string taught while holding the pencil and draw a circle on the plywood.
5. Using the jigsaw, cut the freshly drawn circle from the plywood.
6. Repeat steps 1-5 for the remaining piece of plywood.