You can just add pre-made chocolate chips to ice cream and they’ll stay in the shape you added them in. Or, you can take a bit more time and create thin, irregular chips that seem truly authentic and an integral part of the ice cream experience (yes, I’m waxing eloquent about chocolate chips in ice cream). And you can use your favorite chocolate!
I learned this technique from David Lebovitz’s website, and this method is officially called Stracciatella (thanks Amanda!). I also make chocolate chips using my coffee bean grinder. It makes really nice, small chips; almost like chocolate dirt.