Could we solve our parking problem?

Over the years it has become more difficult to park in our street as people use it as free parking to go into town and to work. Which means that many a time our cars end up in neighbouring street.
To try and get an idea of which cars belong to residents in this street, I thought of making some stickers.

As I am not very computer savvy and I noticed that Thomas needed to earn some gems, I asked him to come up with some ideas. I think they are pretty good. I will now see what the rest of the street things of the idea.  Fingers crossed.  Thanks Thomas for taking the time to design them.