You can shape them the way you want there are many rubber & silicone moulds easily available in the market .Or you can roll it out on a fruit cake I have baked a fruit cake which i will be covering with marzipan and fondant.
250 gms Cashews
500 gms Sugar
2 egg whites
Rose water as needed
1 tbsp butter/ghee
1/2 tsp almond essence
Soak Cashews in hot water for 3-4 hours.
grind cashews with rose water to very smooth paste.
Beat egg white till stiff .
Mix egg whites,Sugar,Cashew paste & the essencet well in a thick heavy bottomed vessel & place it on gas a on very low flame stirring continuously.
The flame has to be low & you got to stir everytime so that the mixture doesn't stick & burn at the bottom.
Add ghee & continue stirring
When the mixture is almost ready it will leave the sides You can switch off the gas & pour the mixture on a stainless steel thali
Grease Your hands well with ghee & knead while its still warm if the mixture hardens you could add few drops of rose water & knead to a smooth pliable dough.
You can divide the dough & form balls and colour & knead well.
You can use your hands to shape them or place a small portion in the moulds & let them dry.
Store in an air tight container.
You can store the remaining uncoloured dough wrapping it tightly in a cling wrap & refrigerating it ,You could use it to cover your cake.