Using polymer clay figures in soap

Hi, I lurk here often, but don't know enough about pc yet to say much. I do
have a question, though. I am making crafts for our church bazaar in Dec. I
want to put little polymer clay "trinkets" into soap (the glycerin type you
melt). Last year I bought the trinkets, but I would like to make them from
pc this year. Does anyone know how the soap will affect the pc? Do I need to
seal the pc with something like Future?

Thanks for any help you can give me.

Helene