I recently ran a series of photos of signs around Tamarindo. The photos today are not technically signs, but I decided to show them nevertheless. They are painted butterflies in a small children's park.
I know this is a rather modest bit of decoration, but I think it is nice that someone took the time and initiative to paint butterflies on a trash can and on the wall of the building that forms one boundary of the park. The decoration adds to the festiveness of what otherwise would be an unattractive trash can and a very plain wall.
The children's park has a skateboard area, a basketball court, and some swings. It is not fancy, but please keep in mind that Tamarindo is a small town, with no traffic lights, only one paved road, no gas stations, and the local government is a half hour away in Santa Cruz. Costa Rica has many needs and priorities, and building a fancy park in a town filled with tourists and international residents is not as high a priority as other civic needs.
Sometimes when public works expenditures are needed, the local community takes up a collection, often supported by donations from the hotels and resorts in town, to contribute part of the money to stretch the use of tax dollars for infrastructure improvements.