How would you suggested the top tier is made.  I mean if the top tier is 6" would you place a 7" cake platter underneath for stability or just use a 6" base and  let the rosettes hang???? I am afraid that the rosettes will fall off once the cake come to room temp.

Trying to avoid a disaster,

Rebecca

You place it on a 6" board. The rosettes aren't really hanging...........just be certain to pipe them down to the base of your board and no one will see the board.