Show the world how nerdy you have been in your basement during all those months of development. Let your customers see what they can´t grasp on a numbers sheet. Show them what your product is capable of. We love all the little details as much as you do, rebuilding all those rubbery things only a madman would set up in  CAD. Let them behave exactly like they do in the real world. And sometimes, if they are really naughty, we even give them names.