Dan Day is his real name; he is an accomplished comicbook artist; I believe he is still drawing these parodies, as I saw an auction for several pieces I had never seen before on Ebay- his brother Dave Day drew some of these pieces too; I had been in contact with him, years ago, for some commissions; but he abruptly stopped producing, after stiffing me for a half payment. Buyer Beware, I guess...
Here's the scans from the auction; dark, blurry and censored, but still..