Some urinals for men incorporate fly targets: images of flies that are either printed on labels stuck to the inside of the urinal or embossed directly into the porcelain. According to statistics...

since the icon of the fly has been in use, it improves the aim. If a man sees a fly, he aims at it. The general hygiene in the toilets has improved by 80%, apart from putting a smile on everyone's faces.
Interesting invention

Who says you can't potty train a man?