Inner tube could be patched, but what to do with tires?
I bought one new tire (7 eur). So I had two broken tires left. And I thought, it would be bad to through them out, so I thought a bit and came to an idea that maybe two broken tires can be combined into one.
Here you can see inner tube already into tire installed into the disks. Take care that inner tube does not get stuck between the disks. Otherwise it will not let you drive screws tight, thus creating space between disks. In this case, when air will be pumped, disk might be torn off by this force. So screws must be tighten up as much as possible, before pumping the air.
Try it out, save your money, save your environment, by reducing both landfill and demand for production of new stuff.