I found this stool at the thrift store for $4.00.
1. Paint the Legs
Remove the cushion from the stool and wash the legs down. You could sand, prime, then paint, but I just went straight to painting with latex semi-gloss black paint. I used a brush to paint 2 coats.
5. Cut Out New Fabric
7. Attach Sides
2. Pin the strips vertically where the new seam will be, to make a nice fit around the circle.
3. Sew along your pin line to make the final seam in your cushion sides.
At this point you just need to trim any excessive seam allowance, and finish sewing the last of the side to the cushion top, finishing off sewing the circle.
So now you have the cushion top circle with a complete side all the way around.
At this point you could staple another plain black fabric to cover all the staples and wood base.
Then you just have to screw the seat back on the legs and you have a classy new stool!