In a spectacularly creative effort to rid Guam of an invasive species, the US Department of Agriculture is planning to 'bomb' the island's rainforests with dead frozen mice laced with acetaminophen. The mice-bombs are meant to target the brown tree snake, an invasive species which has ravaged local wildlife, and angered local residents, since arriving in the 1940s.
http://news.mongabay.com/2010/0928-hance_micebombs.html