Peeling cupcake liner from chocolate mold
I've done something like this before.

Since you are making bowls, I assume this will eventually be filled with something. Depending on what that something is, perhaps you could wait to peel the paper until after you fill it?

For instance, in my case I was making my own peanut butter cups. If I pulled the paper off with just the shell, the bowl would shatter. However, after I filled it with PB and topped it with chocolate, I put it in the freezer and it had enough structural integrity to hold up to the stress of peeling the paper off. Then, I let thaw.