Hopefully your cardboard doesn't break otherwise you can't play your game.
The creations are fairly sturdy to the point where I feel they can take a hard drop on a floor and still be fine. Of course still the issue of accidentally crushing it but I only see that happening with RC Car (unless you sit and step on large objects on a daily basis I guess)
Even then there's still nothing stopping you from making the stuff out of Legos or something. As long as the markers are in the same places and move the same way then it'll work.
Or you lose / misplace a sticker.
Yeah this is an issue because they only give you barely enough stickers to finish everything. Really should've thrown a spare sheet in tbh.