I won’t use any fondant on the smash cake at all. I’ve seen my niece choke on a piece of fondant and she was 3. Even if it is soft, fondant is still fairly chewy and doesn’t dissolve that quickly. I’ve seen smash cakes with it, I just wouldn’t do it. If the hat won’t work in BC, then maybe you can alter the design. Your work is so great though, I’m sure you can pull it off in BC. Good luck.