I made my first buttercream roses today. I've never seen meringue powder here in Australia, so I couldn't make the snow white buttercream in hopes that they would set to apply later. I used regular buttercream and just froze the roses and put them on when I was ready. I piped the buds directly onto the cake. They're not perfect, but not bad for a first try! I copied the design from the picture on the Wilton 3 in 1 caddy.