In case those colorful signs weren’t doing the trick, 11 students in the Yale Entrepreneurial Society made their own good clean fun by rigging up the hand sanitizer station station in the Jonathan Edwards dining hall to make Super Mario sound effects when used.

The students say the gimmick increased sanitization sevenfold. They have entered the video into a contest, sponsored by Volkswagen, for a chance to win 25,000 Euros.

YALE DAILY NEWS