Last year for the 4th of July I made a really nice flag cake, but by the time I took it out of the fridge (whipped cream) the red juice from the raspberries ran all over the whipped cream.

If the raspberries are only sitting on the whipped cream, not mixed in with the icing, don't place them until you take the cake from the fridge.

Thank you for the tip!  I was hoping I would'nt have to wait till then to add the raspberries, but that is probably my only solution.  I do the activity's for my HOA and get very busy serving the dinner's and dessert.