This is a really unique faction!  I can imagine so many factions trying to take advantage of the free movement of the Tortoise.  I don't think I've ever seen a faction use materials that weren't cardboard or wood, but I can totally see the blue ribbon representing newly dug canals.  The options this opens seem endless!

I was a little confused about the structure of the Canals, though I think it's something that would make a lot more sense with an in-person demonstration.  The berry ability says that you place a blue ribbon and a "wood", but I'm not sure what that is?