Here are the steps to make table legs:
1. Cut the wood into four equal pieces.
2. Sand down the edges of the wood.
3. Assemble the legs.
4. Attach the legs to your desk.
You can create your own table legs by using a jigsaw to cut the straight wood into curved pieces. Tape the pattern to the wood, and then use your jigsaw to cut along it. You can use a circular saw if you have one that is strong enough. Drill holes where needed, attach the pieces together with screws, sand everything down and you're done!
Another option is to use steel pipes as table legs. Choose your desired length of pipe, then turn the pipes clockwise by hand into floor flanges.