Tennis Ball Secret Container





Introduction: Tennis Ball Secret Container

For those who don't want to ruin a good book for a safe...


2 Tennis balls

1 Box cutter or small swiss army knife

Okay let's get started!

Step 1: First (and Last) Incision

Start by making a 1.5 inch (about 4cm) cut along a green felt side of your choosing. Be very careful not to cut yourself! Set aside.

Step 2: Picking the Fuzz

Next, grab the second ball and start pulling some of the fuzz off with your fingers. Get at least small handful of it. Set aside the second ball.

Step 3: Roll the Fuzz

Place the fuzz between your palms and roll into one big string of fuzz.

Step 4: Insert the Fuzz

Now take the first ball and squeeze the sides to open up the "mouth" of the ball. Close and adjust so that the incision blends in with the rest of the ball.

Step 5: Done!

Now you can insert valuables and have them disguised as a lovely green sphere of felt! (My next Instructable may feature a wall display for these tennis ball safes--a most unlikely hiding place for your treasures!)

If you liked this Instructable, please vote for it in the protected contest!



    • Pro Tips Challenge

      Pro Tips Challenge
    • Science of Cooking

      Science of Cooking
    • Paper Contest 2018

      Paper Contest 2018

    We have a be nice policy.
    Please be positive and constructive.




    ... unless you have a whole bin of tennis balls!

    ton get the fiz off the secand one so the whole cant be seen unless u look for it


    Why do we need two balls (tennis balls)

    very clever :)

    I think that this is too hard!!! Nah joking this is really good and cleaver

    Warning! The ball doesn't work after cutting into it! (the incision messes up the bounce!)

    Wicked clever! Thanks for sharing.