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!


Yonatan24 made it! (author)2016-08-24

Hi, I've added your Instructable to the "10 Things YOU Can Make From an Old Tennis Ball!" Collection

Here is the link If you are interested:

theegghead made it! (author)2015-01-12

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

Dr MonkeyMan made it! (author)Dr MonkeyMan2015-01-27

That is true.

pozd7107 made it! (author)2015-01-27

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

mh8 made it! (author)2015-01-24

Why do we need two balls (tennis balls)

Tomsm made it! (author)2015-01-13

very clever :)

hughw99 made it! (author)2015-01-08

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

theegghead made it! (author)2015-01-06

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

Chloe sandra made it! (author)2015-01-04

very cool i like it

Uncle Kudzu made it! (author)2015-01-03

Wicked clever! Thanks for sharing.

khorner2 made it! (author)2015-01-03

Make sure to let the wife know, cause when your boxer starts vomiting up the thousand or so dollars you had in there, it's quite upsetting...

SphereX made it! (author)2015-01-03

You can also use it if you lock the keys in your car. Will open some door locks.

matt.goldberg.77 made it! (author)2015-01-02

I've seen this trick done with tennis balls and then they are filled with the tips of strike-on-anything matches. It's kind of like a Mario fireball. Not highly recommended, but came to mind when looking at your project. Cool idea!

fred3655 made it! (author)2015-01-02

I suppose you could non-chalantly store them in a tennis ball canister with a couple of cheap raquets in a storage box under the stairs. (In the conservatory with a candestick...)

M3G made it! (author)2015-01-01

Nice one!

pof0223 made it! (author)2015-01-01

That's not that cool

Babybg made it! (author)2015-01-01

Looks really easy and cool

seamster made it! (author)2015-01-01

This is such a great idea. So simple and effective!

About This Instructable




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