SECAmb is looking for designs which incorporate a rainbow, NHS logo and a supportive public message.
A small judging panel will choose three winning designs which will be placed on four ambulances in each of the three counties served by the trust.
The competition launched last Friday is open to children aged 11 or under who live within the service’s region.
The competition was the brainchild of operational team leader, Neville Bettley. He said: “We’ve had overwhelming support from the public and I thought this would be a way we could express our thanks.
“We see so many great pictures of rainbows as we go about our work and I’m really pleased that the Trust has been able to take this forward.”
Entries should be on A4 paper and sent to [email protected] by 5pm on Friday, April 24 along with the child’s name, age and address, so that at least one of the four ambulances in each winner’s county can be based as near to their home as possible.
Winners will be notified by May 1 and the trust is looking at ways to share all entries.