I am trying something new and have some questions...hoping someone out there has some answers for me. I am making a swimming pool cake and I need to make a "splash". My question is does piping gel break down Royal Icing? Also, does RI come off of foil? I am molding the "splash" basically trial and error style so if anyone can help me I would greatly appreciate it, thanks.

I'm not sure about the piping gel but the RI does come off the foil. Good luck with your cake!

Maybe you could make the splash out of sugar or gumpaste?

I would try gumpaste too.

It's not what you asked but...You could also make your splash coming off the cake on wire...

Thank you all for your suggestions!