Ralbalboa sent in this scan of a cover from an early Sonic the Hedgehog comic book:
(Click to enlarge)
It’s Sonic the Hedgehog #9, cover-dated April, probably from 1994 (GCD says the series started in 1993). And as regular readers here will no doubt notice, it’s a reference to the classic Flash of Two Worlds cover from Flash vol.1 #123 (1961).
There are actually a lot of homages to this cover out there. (Most recently, Flash: Rebirth #5 from last week!) I’ve collected some of the ones in later Flash issues on my Cover Homages page (which I hope to update this weekend), but I’ve seen other variations with characters ranging from Supergirl to Lobo (The “Thrash of Two Worlds,” IIRC)
Ralbalboa originally posted the link in the comments to the previous post, so I’ve moved that part of the comment thread over here using the Move WordPress Comments plugin.