What if in the end of Doomsday?

[CaptainJordan]

What if, instead of Donna Noble, Sandy Cheeks from SpongeBob SquarePants appears in the TARDIS at the end of the Doctor Who episode, "Doomsday"?

 

[Timby]

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[The Wormhole]

Then I guess we'd have a SpongeBob crossover.
/THREAD