Just not funny...
This is just a cruel excuse to take advantage of his death. I mean, if you were doing this for Steve, then you're ust stupid! Do you really think Steve Irwin would want you to go and kill the stingray that got him? It's not really the stingrays fault after all. If anything, Steve would want the Stingray to be adopted by his family, because that's how he is. That's why he got so much respect (And ridicule), because of his love of animals, and you ruthlessly went against it.
If you say this is a tribute in response, up yours! That's even worse. That would only make things worse.