The snail clock is SpongeBob's house clock.
It is designed to look like Gary. It has a shell and eye stalks just like Gary. It also includes teeth and a tail.
SpongeBob looks at it and declares that it's time to give Gary a bath.
After SpongeBob falls asleep, the clock grows a mouth and says "Time's up, SpongeBob!" in his dream.
SpongeBob looks at it and realizes it's time for him to go to bed.
|| "This plan Z can't possibly fail!"