Another truly strange trope that came up frequently at Dime Mystery appears to be some sort of involuntary mummification, possibly in connection with forced mating with some long-dead Egyptian. A good example would be July 1936 (issue ISFDB entry here).
And there’s an even more thorough one for September 1940.
But perhaps my favorite of the trope is actually an inverse, a cover painting by Tom Lovell for the May 1937 issue (ISFDB entry here). It’s actually a man undergoing the wrapping, under the gaze of a laughing cultist. There’s a girl, and what’s she’s undergoing is rather more mysterious, with wisps of mist or mystic energy or whatever providing another example of just-barely-implied nudity.
This is another example of a page worth visiting at Pulp Covers where the curators provide some interesting interior art (described on the issue title page as having been done by “Monroe Eisenberg and Others”) and also make the whole issue available for download.