Actually ...that is a pretty logical idea...the fire ant floating ball...extremely cool.....but the key word is floating...for humans ...floating means air in lungs..the ability to keep water out ..and that means very specific internal muscular control..as well as swimming. When you die you lose that. A drowned person does resurface 2wice...due to gas and residual air in the lungs... after the 2nd they don't tend to come back up. Zombies though would be able to walk the bottom of the Strait to the coast faster than I could swim it ...so it's possible they would be waiting for me... which I didn't actually initially think of.

Now....if you fill a zombie up with air or helium and then cork them at both ends (!) you then could easily have a floating zombies...very...very upset ones I'm sure. Pack and distend a zombie with something like ALOT of helium...and you could technically have a Zombie Dirigible or as I have now just coined the new dangerous zombie type ...the "Zomgible" ...tie some cables around one or a gaggle of them ...which now becomes a messed up concept... harness that sucker ....wow..that's messed up