While Topsy and Tim help Mummy to stuff envelopes, the doorbell rings. It's Mr Rosen and his friends. Their minibus has broken down outside Topsy and Tim's house. While the minibus gets fixed, Mum invites Mr Rosen to stay for a cup of tea.

Mr Rosen introduces his friends as Mr Nicolas and Miss Kidd, who teaches Tim to play the ukulele! Soon everyone helps to stuff the envelopes while they sing in time to Tim's ukulele playing. Show less