The last thing you should do is accept legal advice on the Internet. That said, if you are curious about researching interstate transport of plants and animals, the Lacey Act is a good place to start. It's like a RICO charge from the gangster movies, transporting protected species across state lines escalates the charge to a federal one. Plus you have the whole TSA drama with liquids. Additionally, Wisconsin may have rules about what you can bring in. Like, you can't bring caulerpa algae into some states because people flushed it down the toilet and it went cray as an invasive species.
So you have 3 questions: what can go on a plane? what can leave FL? and what can come into WI?
If you can afford it, the easiest thing is to probs buy the specimens and declare them at the airport. If they want to take it, or trash it, so be it. Trying to sneak anything onto an airplane is asking for a world of hurt.