Hi. I think that the Giant Microbes are some of the most innovative toys around. After seeing them listed in The Week Magazine a few years back, I found some a store and bought Sore Throat. Since then I have bought Martian, Yeast, Flu, Bad Breath, Athlete's Foot, Bed Bug, Dust Mite, Bookworm, Stomach Ache, and Ulcer. Keep 'em coming!