I am wondering if anyone has used fondant or gumpaste as mold putty? I don't have access to any mold compounds at the moment, and I was wondering if either of these would work?

I could see that it might not work for a hot item such as sugar or chocolate, unless you froze the fondant mold first, but would it work for a fondant or gumpaste object?

Thanks in advance

Yes, you can use it to make a mold. Let it dry completely, dust with cornstarch and use like any other mold. It is a good alternative to expensive silicon molding compound. Be careful with it....don't let it get exposed to moisture as that will degrade it quickly. So, for a 'temporary ' mold... it works great, and with care will last quite a while.

Yes, I used gumpaste once to make a mold of Thomas the Train's face. Let it dry really well, and it worked fine.
I think I still have it somewhere!

Thank you both, I am going to give it a go