1. Some text from the Wikipedia article, correctly informing you that a tintinnabulum is a small bell on a pole in a Roman Catholic basilica symbolizing its connection with the Pope.
2. An image of a sculpture whose title happens to be "Tintinnabulum". The sculpture is of a naked woman riding on a penis-with-legs. The penis has a penis of its own, too. (Regrettably this doesn't continue recursively.)
I am fairly confident that nothing resembling that sculpture is to be found in any Roman Catholic basilica symbolizing its connection with the Pope.