The Origin of Stretch Armstrong (partially found action figure-licensed comic book; 1992)
Stretch Armstrong is an action figure introduced by Kenner in 1976. The figure could stretch up to four feet, and bend into different poses, then stretch and bend back into his original shape. Kenner stopped producing him in 1980, though a few attempts to reintroduce him have occurred since then.
From 1992-1997, Cap Toys relaunched Stretch Armstrong as a pliable superhero, with a variety of other aliases. Initially, this figure also came with a free comic book detailing his origin. As of February 2016, only the first and last pages have turned up online, since advertiser Scott Edwards shared them on his Pinterest page some time in 2015. From this scan, the comic appears to have ran at least eight pages total, and traced Stretch Armstrong's journey to find his estranged father. Aside from Stretch becoming part of a crime fighting team (none of whom, except for Stretch and his dog Fetch Armstrong, actually received their own toys) before the story's end, the rest of the plot remains unknown. Sometimes a listing for a Stretch figure that comes with the book turns up on eBay, but not as often as a listing for only the toy does.
Hasbro purchased Cap Toys in 1997, making them the current owners of the Stretch Armstrong trademark (and through an earlier merger with Kenner's parent company Tonka, the owners of all of Kenner's most famous toys). Hasbro has also made a few attempts to translate Stretch into other media, including various un-produced live-action movies, a short-lived comic exploring the worlds of different Hasbro-owned toys, and a cartoon on Netflix. The cartoon premiered in November 2017 as, Stretch Armstrong and the Flex Fighters, spawning an ongoing comic the following January. Both of them follow a continuity with no connection to Cap Toys' tale of Stretch's origin.