I am pretty much a fondant newbie thought I have played around with it off and on (mostly off) for a couple years. 

 Currently, I have been trying to dry wings for a C-130 for 5 days now. I have seen several postings talking about putting pieces in the oven with just the light on.  If I put them in the oven with the light on tonight, can I go to bed and get them in the morning.  It would be about 6-7 hours in the oven.  They are a little thicker and have no gum paste.  Just in case, I did mold tracks for skewers because I think that is how I will have to attach them to the rice krispy plane.  I just don't want to find them melted in the morning. 

  And - what is tylose? Is this something I could find at Hobby Lobby?  Do I just sprinkle on the fondant and work in? Won't it make the fondant gritty?

Here is a picture of the plane so far..

Thanks,  Joanne

When I use fondant I cut cardboard out and cover it with the fondant. I have found gum paste hardens faster. I have not heard of the light thing. 

I've left pieces in the oven overnight before and they don't melt. If you want pieces to dry hard and strong, though, you really need to use Tylose or cmc powder or mix gumpaste with your fondant about half and half. Tylose is sold with cake decorating supplies in a little bottle like sprinkles come in. You do just sprinkle it on the fondant and knead it in. Some people say you should let it "rest" for a few hours before using, but lots of others use it right away. It should blend in and not make the fondant gritty. It's a fairly fine powder. I've found it at Michael's and the Party Time store so Hobby Lobby could very likely have it too. Tylose and cmc (Wilton makes that) are just gum powders like what you'd find in gumpaste.
 

Thank you so much.. this helps a lot. 

I hate to ask one more question. I have the Wilton powder you can use to make gum paste... would that work?

I think I have some of that.  I will work in to the other fondant I need to use to make the figures.  Thank you so much 

Definitely add in the gumpaste. It hardens so much faster. If you DO put it in the oven, make sure to take it out before turning it on. Not a lesson you want to learn the hard way. :)

When i want something to dry fast and hard. i turn my oven on 150 F and leave for 2 hrs. I got his trick from Nicholas Lodge and Scott Clark Wooley. If I use fondant i add tylose or gumtex or use straight g/p. hth

I personally use a food dehydrator to dry my fondant...works like a charm

AThank you all for the great advice. The wings dried with just the oven light. Now if only one wouldn't have cracked a little when I put some additional support in them. But a little patience and fondant "welding" and it was as good as new. It only took a couple hours in the oven with just the light one but I left in there for more than a day because it was a safe place! Here is picture of the finished project.

[IMG ALT="*"]http://cakecentral.com/content/type/61/id/3052248/width/350/height/700[/IMG]

The other cake was what I was working on at the same time. It's the first cake with stable structure I have ever done. Other than the person on sideways it wasn't too bad.

The plane came out really nice! The other cake is cute too. Your figures look good. Glad it all worked out.
 

AThanks :) I can't do fancy wedding cakes but I'm getting better at the fun cakes!

The plane turned out really goo. I like how the flames on the other cake come up to make a 40.

Thanks... That cake celebrated multiple birthdays - 40, 50 and 67.   I has seen someone else's cake somewhere that showed the number in the flames but wasn't a part of them.  I liked it.  My son actually did the flames and then came up with the idea for the interstate sign for 50.  I had to transition from Harley to Patriotic. Then the way to transition just came natural.  It actually turned out pretty good.  I was impressed!  Not Cake Boss yet, but I'm coming along!