For a truly stunning backdrop at your Mermaid party, why not opt for a balloon cloud kit.

This fantastic DIY balloon cloud kit from Bubblegum Balloons will help create the underwater oasis you are looking for.

Featuring 55 balloons, this 2 metre garland can be assembled and placed wherever your party is taking place. Simply inflate the balloons (with air only – no helium required) and attach to the decorating strip supplied in the kit.