GIRLS at a Northwood School are honouring Pinner illustrator William Heath Robinson with their Mad Magical Mechanical Music Machine at the Pinner Village Show this weekend.

It took the budding engineers at St Helen's School a year to complete their invention, which was inspired by the 20th century cartoonist known for his intricate sketches of contraptions to achieve basic tasks.

The girls' invention uses a variety of sticks and hammers, tins, plates and bottles of water to produce different notes.

They made it in a lunchtime Heath Robinson club and tomorrow, September 12, they will show off what it can do at the Pinner Village Show.

Chris Le Bas, the science teacher who helped the girls with their creation, said: “Our performances on Saturday will be an amazing opportunity for the girls to display their creation in the home of Heath Robinson’s art.

“A variety of experiments ensued. After a lot of tinkering, hunting for the right kind of object, tweaking and adjusting, our Mad Magical Mechanical Music Machine was completed and gave its first performance in front of the school.”

He said the Wallace and Gromit cartoon was another influence in the girls' design.

Guests at tomorrow's Pinner Show will also be able to tour the historic West House and Heath Robinson Gallery in Pinner Memorial Park from 11am to 4pm.

There will also be a talk by Peter Higginson, an expert on the artist.

The grounds were reopened after local residents raised £1.5million to renovate the previously derelict estate.

It has since been awarded more money by the Heritage Lottery Fund after it was recognised for its cultural value.

The money is to be used to help create a new Heath Robinson Museum that will sit adjacent to West House.

The trust hopes the heritage open event will help to raise the £127,000 still needed in order to make the museum a reality.

For more information on the event, or to make a donation towards the museum development, visit http://westhousepinner.com/the-appeal/