Soldering Irons that quit working?

[DixiePythons]

Thanks for the replies and the advice! I've thought about drilling but the one time I did it, the plastic cracked. So what type of bit would work best?

I like burning the holes, I have a 8$ iron from wally world that is still going strong...
The larger tubs, I do drill to get larger holes... Use a high speed drill, and apply very very little pressure... Pushing on the drill is what cracks the plastic.