This was my final cake for the 1st Wiltons basic class. My piping needs work. I was disapointed because by the time I got home it developed a huge air bubble under the buttercream, I was able to pop it w/ a toothpic but there are cracks on the top now and I just made it worse by trying to fix it. I didnt even know air bubbles could form under the buttercream it was really weird looking.