My tip is more of a how to get the roses on the cake easier tip. I don't use a stick or those flower scissor things. I attach a foil square to a flower nail, one of the flat metal ones, with a dab of icing then I make the rose on the foil, slide it gently off the nail, and put it in the freezer. I continue to make roses until I have the amount I need and then by the time I am done, the first of the roses I made are firm and I can peel them off the foil with my hands and place them directly on the cake. No more gouging the top of the cake with the scissors and no more having the icing turn into a blob when trying to put the rose on the cake! This also gives you a few seconds to reposition the rose if needed, but they warm up quickly so don't try to touch them too much. I would love to be able to use those scissor things, but they hate me so this is just much easier. Hope it helps!