I decided to wanted a competition yesterday. A novelty çake decorating competition at the county fair, which is in two days. I decided to do a table with a place setting. I have all the gumpaste decoration done and now I am struggling with how to make my cake dummy look like a round cake. I'm pretty rural. No easy access to a store that would have dummies. 

And if anyone has ideas on how to also do a dining chairs please let me know. I think it will end up being just a table. 

Maybe because of limited access just do the table top?    What shape is the dummy you have is it not round?   It can be cut w/a serrated knife then if needed smoothed w/a piece of the styrofoam you cut off