Have you ever rented out a parking space?

I live in a condo community and own the unit I live in. One developing problem is a shortage of parking. A few of the renters have multiple cars - one in particular has up to 6 parking here. Each unit is assigned one reserved space and remaining cars need to park in "guest" spaces. When the guest spots are filled up, some people are just choosing to park in reserved spaces that do not belong to them. The units for those spaces are vacant, but the point is that it still isn't their space. So imagine a parking shortage with vacant units and then those units fill up. The situation is only going to get worse. Fortunately, I have access to and use of two reserved spaces. A group of folks I know (who also own) are only here about half of the year. I look after their place during the other half and in return I get to use their reserved space (so technically, I have a reserved space for myself, and a reserved space for guests). I am thinking of renting out the space that is assigned to my unit to try and take advantage of the parking shortage. Any suggestions/feedback? Thanks!