Cindy, I'd say about 10 hours total, done over 3 days
I did it in stages:
>> Made the candy letters first to confirm that idea would work. I've had many interesting (read: weird) ideas that just didn't work. This had huge potential to be one of those.
>> Covered a 16x20 canvas board with blue tinted Royal icing and left that to dry completely.
>> Cut out the rough outline for the rooftop scene using an enlarged Xerox for a pattern. With so much humidity in the air, the leftover gingerbread panels from the workshop had softened again, so I cut out what I needed, then rebaked them for 40 minutes to harden.
>> Made the striped edging with red and white fondant and shaped those around the borders.
>> Painted the roof top scene with tinted Royal Icing using Mary Englebrit's artwork as my model. Mounted that with more Royal Icing.
>> Mounted the words, added the edible beads.
>> Added the battery-run lights (those were a disappointment. They only lasted 7 hours and were really too big for the design. Then I piped over the edges with...say it with me....more Royal Icing.
>> Made that horrid LM Star logo out of fondant. Since each contest entry HAD to include a LM Star as one of the rules, I wanted to show solidarity for my GBH virgin comrads.
Is that everything? Let me peek back to the photo and see...
Oh, before I rebaked the curved gingerbread offset, I made cut-outs with a small cookie cutter and filled the holes with crushed candy.
When it was all composed, I added some mini-packages and candy and one little gingerbread guy. I tried to pipe on a blue LM badge like we all have to wear, but it ended up looking like he was modeling a blue thong.
That's when he leaped off the canvas and ran away to Brazil.