When I was in high school, I did a project testing the 5-second rule by dropping gummi bears on different floor surfaces that I had swabbed with E. coli. For the record, 5 seconds is more than enough time for bacteria transfer to happen.
The following is a way cooler use of gummies and science:
The Bad Astronomer explains what’s going on in that reaction in his blog. Science is cool! And don’t try that at home, probably.