Notes:

The first Expand Dong I manage to do on my own:
First Finn face from "Card Wars"
FINN – "Finn The Human" Title Card
DELIVER – "Pizza Delivery" Title Card
S – "Squidward the Unfriendly Ghost" Title Card
THE – "The Silent King" Title Card
YOUNG – "Too Young" Title Card
LITTLE BOY – "Bad Little Boy" Title Card
C and OCK – "Rock Bottom" Title Card
Second Finn face from "Ricardio the Heart Guy"
U and N – "Burning Low" Title Card
TIL – "Still" Title Card
HE – "His Hero" Title Card
WAKE and UP – "Wake Up" Title Card
the other S – "Memories of Boom Boom Mountain" Title Card