Nobody mentioning 3D printing? :(
For those un-enlightened in the ways of making inedible spaghetti: Hair spray is often used as a makeshift adhesive to make your prints stick to the printer and 230°C is conveniently around the temperatures you print most stuff at.
(I know it’s not hair spray, but it would be more funny)
The Linux kernel actually uses quite a bit of OOP ideas. You have modules that are supposed to have a clear interface with the rest of the world, and they (ab)use structs to basically work like objects. If you try hard enough, you can even do “inheritance” with them, like with their struct kobject. It is actually somewhat well-thought-out, imo. No need to go full OOP, just pick some of the good parts, and avoid the MappingModelFactoryServiceImpl hell or the madness that is C++.