How do you make a portable tetherball base in an old tire?

First you get a piece of cardboard that is big enough to fit the circumference of the tire.

Get your tire ready and place it on the card board. This is to prevent the cement from drying on the concrete or where ever you are doing this project.

Then, get quick-dri cement (the just add water kind) from your local hardware store and a 5 gallon bucket to mix the cement in or whatever you can find, or you could mix the cement on the ground if you know what you are doing. You must move quickly though.

After the cement is mixed pour it into the tire up to the inside rim. Don't overfill it. Make sure the whole tire is filled up on the inside. Then place the pole in the center of the cement.

You will have to find someway to keep the pole in place while the cement sets. I would recommend at least 12- 24 hours.

There you have it. Instant Tether ball base.