Rainbow button cake decorations

If you’re looking for an impressive way to decorate a small rainbow cake then this is it. These pretty rainbow coloured buttons are so simple to make using fondant and modelling paste and will transform your cake into a work of art.

You can pop them on top of individual cupcakes or decorate a whole cake just like our cupcake queen Victoria Threader has done.

You can experiment with different coloured buttons – try pastel colours like baby blue or pink. You can personalise your bunting too with the birthday boy or girl’s name or a special message.


  • 120g ready to roll fondant
  • 120g modelling paste
  • Rainbow food colour pastes
  • 1tsp royal icing sugar