Kids, don’t try this at home. For that matter, the same goes for adults.
For those who object to the destruction of the colony, let me just say that fire ants are an invasive species. Wikipedia has this to say about the ones infesting the southern US:
The Food and Drug Administration (FDA) estimates more than US$5 billion is spent annually on medical treatment, damage, and control in RIFA-infested areas. Further, the ants cause approximately US$750 million in damage to agricultural assets, including veterinary bills and livestock loss, as well as crop loss.
On the whole, I’d rather see art than poison as a result of their eradication. Considering over 23 million viewers have watched (fascinated? horrified?), there must be something to the method in this madness.