I think the alligator clip leads are cheaper than a couple of good banana plugs by themselves. I think Stan's linked set of alligator clips are less than a pair of the banana plugs I have been using, which are heavy duty and fit tightly in the jacks. They don't loosen up like many of them do these days.
I have alligator jumpers, and was originally thinking of just cutting a red/black pair in half as Stan says above. The banana plugs sound like a good idea too (hadn't thought of that) and I also have plenty of those on hand.