Make a marble run from recyclables

Funding our children’s addiction to novelty gets expensive. So, here’s a way to turn your recycling into their next big invention.

How to try it:

• Raid the recycling bin for toilet rolls, paper towel tubes, bottles, cardboard — anything that looks promising.

• Get some marbles.

• If you’re sticking it to a wall or door, use decorator’s tape to avoid peeling paint.

• Build and test as you go — half the fun is in the trial and error.

• Your children might choose to join forces with you on one giant run, or each build their own.