There is a long going issue in my parent's car: there is no lock for the seat belt buckle. This means that whenever the seat belt is rolled, nothing prevents its buckle from falling down, making it really difficult to reach. Let's try to fix it!
A couple of measurements, a bit of 3D designing and some 3D printing later: here is a really convinient little clip to prevent the buckle from falling down!! It does not look like much but it makes life some much easier every time someone wants to drive. 🏎️💨