Welcome to the Cake Decorators Q&A

Hi,
1. Please can you tell me what the Christmas Tree and Grinch is made of for https://www.instagram.com/cakedaysaweek/p/C-lEv4uKS2M/?img_index=1

Is it Sugar florist paste or Modelling Paste or something else?
They both have a flat back.

2. What support is added to the Christmas Tree to make it stand upright?

Thanking you in advance.