This is actually a science project I did when I was in school but I remembered it being so fun, I introduced it to my kids one very wet weekend. They had a ton of fun rearranging the path for the marble to run down. It’s great for them to learn about scientific discovery this way – sometimes one way doesn’t work, so you have to problem solve and think of another way to solve the problem of getting the marble into the box.


  • 6 empty toilet rolls
  • 1 small box (not seen in the picture)
  • 1 marble
  • sticky tape


  1. Clean the toilet rolls from any scraps of paper left on them.
  2. Cut strips of sticky tape and double side them. Stick them to one side of the toilet roll, then stick the toilet roll to the door. Do this for all the toilet rolls.
  3. Have your child figure out a path for the marble to run down and place the box on the ground where they think it will land.
  4. Once the path has been arranged on the door, have your child place the marble in the topmost toilet roll and see where it runs to. If it lands in the box - fab, see if they can make another path. If not, have them rearrange the toilet rolls until the marble runs true.


If you have small children, substitute the marble for a pom pom. It falls slightly slower and doesn't run so away if it misses the box. Plus, if you have wooden floors, it is much less noisy!

Want other brilliant projects sent to you?

You'll need to check this email to complete your signup.


This project was posted by:

    • 13 Jun 2016
      4:48 pm

Post your project
  • Making marble runs is great fun for kids, they get a real sense of satisfaction from making something – as long as the ball works, and that’s a great idea about the pom pom.


  • Love this idea. Will have to give it a try and see how long it’ll keep them entertained for.


  • This would keep both our Daughter and Husband entertained for hours! They’d love building it together


  • So cool! My boys would love this craft. And a great way to use toilet rolls!


  • What a great idea for all the toilet rolls I always end up with. Plus you can change up the set up and get your kids thinking


  • This was a great activity. I love how it got my kids thinking especially when things didn’t work the first time or the 5th time. So simple but so good and it got them off technology.


  • I loved doing this with master 4. And watching him work out how he could make his tunnels work was great. And something he could do in multiple ways


  • A super easy idea to keep them going!


  • that looks like lots of fun for very little cost.. so cool


  • What a great idea.


  • I will definitely start saving my toilet rolls for this!


  • Great way to keep kids busy.


  • Looks amazing thanks for sharing your project


  • Could use this to do a pom pom sort


  • What a great fun project to do. We always collect toilet rolls, handy for many craft projects. The kids will love doing this one.


Post a comment
Like Facebook page

LIKE MoM on Facebook

Please enter your comment below
Would you like to include a photo?
No picture uploaded yet.
Please wait to see your image preview here before hitting the submit button.
Your MoM account

Lost your password?

Enter your email and a password below to post your comment and join MoM:

↥ Back to top

Thanks For Your Star Rating!

Would you like to add a written rating or just a star rating?

Write A Rating Just A Star Rating