The Bat // Vampire double sided token from commander 17 is missing. Both sides are available as singles, just not the combination.
https://deckbox.org/mtg/Bat?printing=36692&lang=us
https://deckbox.org/mtg/Vampire?printin … mp;lang=us
An example from TCG Player of the double sided card: https://shop.tcgplayer.com/magic/comman … 74ec7531f0
edit:
Also the Steadfast Sentinal (HOU) // Zombie (AKH) double sided token
https://deckbox.org/mtg/Token%3A%20Stea … mp;lang=us
https://deckbox.org/mtg/Zombie?printing … mp;lang=us
https://shop.tcgplayer.com/magic/hour-o … 8e3904bd5c
And Vampire // Zombie from C17
https://deckbox.org/mtg/Vampire?printin … mp;lang=us
https://deckbox.org/mtg/Zombie?printing … mp;lang=us
https://shop.tcgplayer.com/magic/comman … 7ac97db686