Fondtastic Gum Paste is perfect for modelling. It can be used to make flowers and figurines. The texture allows it to be rolled paper thin while remaining soft enough to mould. It sets rock hard however can be mixed with Fondtastic Fondant to make it softer. It is also gluten and nut free.
You can add gel colours to colour gum paste. See gel colours here -https://www.partymixperth.com/collections/food-colour-gel-paste