Here's a few samples from the first issue of YAK YAK in 1961, from Dell (there would be a second issue in 1962, not a sign of fevered public demand for this material). Weird comic. No ads, and some of the art was in regular four color but most was an odd experiment. The figures were left white, while the rest of the panels were light blue or pink or green. No borders on the panels and the dialogue was in rectangular balloons. It might not have been very good but it was distinctive. This was a style we later saw split-off Gold Key use on DR SOLAR.
Whether he was doing humor or horror, adventure or Westerns, Davis was always unique and enjoyable. Too bad the writing on this was so weak.