I am doing several square cakes 6, 8, and 10 inches. I am wanting to have them tiered with flowers (Red Roses) in between. I have noticed that some of the pictures that I have looked at have super thick separators (white) boards. How do I make these or can they be purchased. The six inch cake would need a 7" board, 8 inch cake would need a 9" board, and the 10 inch cake would need a 11" board. Can I use the plastic hidden pillars on this as well? Can I use regular squared cardboard to make these and cover the boards with white wedding decorative paper and glue the hidden pillars on the board?

Thanking you all in advance for your suggestions.
wifey