Let's take a look at some of these projects:
Starting with the hedgehog again- Here is a photograph of the model, showing some of the detail of the underlying structure. From this page (also showing Garfield, Santa Claus and the Frog Prince)
Dragon: there are a couple of dragons, but I like this one for two reasons: Firstly, the temple that he is flying through is a good addition, and the way the curves of his body are made- if you look just behind his head you will see how the fabric has been left hanging to make a natural bend.
There are quite a few other images at an Israeli scouting website, they're definitely worth taking a look at:
Construction photos (before cladding is added)
Closeups of models, construction process, also a dragon and an eagle completed
Dinosaurs, eagles, a cactus, sportscars and lions
A dragon, Wolverine, Mario and Luigi and a Transformer
Another dragon, Spongebob and Patrick
If you spot anything of interest in the Hebrew text in these links, or if you were on this camp, please let me know a bit more about it- how long did these take to build, who designs them, how many scouts work on them etc.