The word wiener needs to be integrated into everyone's vocabulary far more than it is already. It's not nearly as offensive as some of the words used to refer to the male sexual organ (i.e. penis, cock, dick, fuck pole), and rolls off the tongue quite nicely.

I also find that wiener is also effective in substituting for harsher name-calling words. It can simply be a nice, friendly insult. For instance, if you were to get in a shouting match with someone and desperately wanted to call them a fucking bitch or something outlandish like a cock-sucking douche bag, you could just calm down and call the person a silly wiener instead and laugh about how ridiculous the situation probably is. So starting to use the word wiener could very possibly save many friendships, and it's a fun word.