Cards like Demon's Disciple and Orah, Skyclave Hierophant fit this strategy well
Note that the permanent represented by the combined back faces has a color indicator
We don't recommend it, though, because it's janky as all hell - it's far easier just to hop over to your mobile browser and do it there
"From what I've seen recently, a PSA [GEM-MT] 10 box topper Charizard sells for less than a reverse holo [foil] Charizard," explained Browning in a March 2018 interview
Cards like Weapons Manufacturing generate the snacks you need, but for the ultimate meme, try combining Liquimetal Coating with creature theft
The only potential problem is that you do have to tap out, so if there's a strange combination deck that can discard three cards, sacrifice a creature, and go off anyway, then you'd have to be careful