Does anyone else get the impression that something will always go wrong with every cake you make? Maybe a Murphy's Law of cakes or something...

My current project is inspired by this cake:

http://cakecentral.com/g/i/3144773/birthday-cakes/

I am using the same idea and not changing much (it's such a beautiful cake!), but I am altering it a bit to use it as a Christmas cake for a party this weekend. I'm replacing the small tavern at the bottom with a stable/nativity, and modifying some of the decorations a bit. 

Here's my problem, I cut out all of my gumpaste sections, and I laid them over styrofoam cake dummies to have them dry in the proper shape/curve. The back of the gumpaste was slightly tacky (from rolling) when I laid it down, but otherwise I didn't do anything to make it stick to the styrofoam. I'm now realizing that I should have covered the styrofoam with plastic wrap or something, because the gumpaste seems like it might not come off--it appears to be pretty stuck to the styrofoam.

The gumpaste has only been drying for about 2.5 days (I also didn't roll it thin enough, I think, so it's going to take some time to really dry).  In my head, I was thinking that even if it did stick, it would be easy to pry off once completely dry.  But now I'm not so sure.  What does everyone else think?  Will it be easy to remove once completely dry?  Or should I start over and make a new batch (I still have time for new pieces to dry before the weekend if I get it done tonight)?

Thanks for any tips/advice/commiseration!

My cakes never turn out completely the way I intended, but no one notices but me!  

To be on the safe side I would start over.  Not worth having it stick and not having a cake.  The cake is very cool.  Post photos when you're done!

I would try to remove one piece - that way you'll know if the rest will release easily  I dry my gumpaste pieces in the oven over night - oven light on - oven unheated and off.  Then in the morning I would take a piece of thread - hold it in both hands - pull it tightly then work the thread under a corner of the gumpaste piece and using a sawing motion work the string under the piece from one side to the other until it releases.  Maybe you won't need to redo them all.

AHave you thought about using modeling chocolate rather then gumpaste?

It's very simple to make, I just love working with it. You could cut it out from your template and wrap around your cake (I'd use jessicakes wax paper technique, you wouldn't have to wait for it to harden like you do with gumpaste).

AModeling chocolate is a great idea! I wish I'd thought of it. Luckily, though, I took Denise's advice and tried to release one piece last night. It didn't want to come loose, but I managed it. Now, I'm hoping it's all downhill from here. Thanks very much to each of you for the input!

Thanks again to everyone for the valuable input!  In case you were waiting with baited breath, ( ;) ), here is the finished product:

http://cakecentral.com/g/i/3154227/

wow--stunning work--no wonder you were worried about your gumpaste pieces!

outstanding

Gorgeous!!

Great job! 

oh yeah--forgot to add-- for next time--

one option is to sprinkle the dummy with cornstarch first