How To Mount Cakes Hi Has Anybody Ever Made The Dinosuare Cake? The Tin Is 16" I Have To Make One And Dont Know How Much To Use

Hi has anybody ever made the dinosuare cake? the tin is 16" I have to make one and dont know how much to use - how to mount cakes

It is a great pie is all that I need the assembly of high-fat meal, sugar, natural or not, etc., this right the first time for my grandson I received was a birthday celebration, and yes, with a theme, Dino. Help!