Just to be clear. Openplay.cc is not a real thing. But if it was it was an organization that provided a catalog of playful open-source furniture for kids.
The logo consists of a circle and a ‘O’ + ‘P’. The idea behind this was to resemble the emojicon ;p with the tongue out. The simple round logo also resembles the CC icons which is widely known in the open-source community.
The idea behind the logo was that it should be able to be cut into the furniture by using a simple drill.