Dds 3rd birthday is still a couple of months away but I always need time to plan and practice so I'm starting now. I'm not bad at cake making and decorating but definitely a home baker and nowhere near as good as people on here. Dd loves my little pony so thought a tall round cake with rainbow coloured sponges and then icing the sides rainbow coloured with buttercream. I usually use fondant, which I'm crappy at, so need some help with buttercream techniques if anyone can help please?