Vice grips are great at gripping objects, and slide hammers are great at pulling or pushing; so its only a natural fit to be able to attach a vice grip to a slide hammer.
Most images you will find when googling vice grip slide hammers show a vice grip welded onto a slide hammer. Welding is not required! Most complete slide hammer sets come with a thread adapter that screws perfectly into vice grips. All you have to do is remove the bolt in the vice grips and screw in the adapter.
The secret is that the adapter is a general adapter for many common sized attachments, but works perfectly with the thread pitch and size of vice grips.
If you already have an existing slide hammer without the adapter, they are available through OTC part number 6627 “Grip Wrench Adapter”.