I have created Uncle Sam using Sugarpaste stiffened up by adding gum tragacanth,
however you wish to use marzipan instead then ignore the bits where I add the gum tragacanth,
as marzipan when of top quality is stiff enough already.
Chop in the gum tragacanth so it doesn't go up your nose when you knead it
up. Add about two
heaped tea spoons to 8oz of paste.
Alter the amount if you feel the need.