The only well known one was the musical Joseph and the Amazing Technicolour Dreamcoat. There was another big music number bringing together several local schools, based on local history and an important anniversary in our town that year.
In juniors we did 'The Water Babies', a Christmas one about Christmas in 'foreign lands' and one year each class was allocated a Commonwealth country to study as a term-long project and we each did a play based on that. My class had Papua New Guinea and we had to wear 'grass skirts' and garlands and I told my mum not to come because the whole thing was unbearably twee and I felt embarrassed.
I mostly tended to cop for 'character parts' or the role of narrator.