.X-Men #138. cover homages- Cyclops with duffel bag.
Note: There is a splash page at the end of ASM #50 that has also spawned a number of cover homages. It shows Peter Parker walking awawy from a trash can with his Spidey costume hanging out of it. I have a list for those covers too, called "Spider-Man No More!".
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Concise Listing:
Alphabetical:
(9/09) Absolution #2. (varaint)
(7/67) Amazing Spider-Man #50.
(8/94) Amazing Spider-Man #392.
(5/95) Bartman #4.
(6/19) Damage #16.
(4/18) The Devil in Disguise #2.
(11/14) Dylan Dog #338.
(?/06?) Furious Fist of the Drunken Monkey: Origin of the Species #3.
(3/17) Gold Digger #240.
(12/77) Howard the Duck #19.
(2/10) The Incredibles #5.
(9/16) Knights of the Dinner Table #235.
(8/86) Marvel Tales #190.
(2/06) Marvel Zombies #1. (variant)
(5/87) Peter Porker, the Spectacular Spider-Ham #15.
(date?) Rat-Man Collection #51.
(4/98) Sharky #2.
(5/04) Sonic the Hedgehog #134.
(10/95) The Spectacular Spider-Man #229.
(4/15) Spider-Gwen #1. (variant)
(6/09) The Transformers: All Hail Megatron #12. (variant)
(5/87) Peter Porker, the Spectacular Spider-Ham #15. WA: Peter Porker. ...He was just peeved that he was invited to the Marvel Christmas party. That he WAS invited...get it? Because they probably needed a Christmas ha... ah, forget it.