Zungenbrecher (auf Deutsch, Englisch, Italienisch)

The topic of tongue twisters (Zungenbrecher, auf Deutsch) came up in conversation, so here are a list of some things that make language ridiculous:

Peter Piper picked a peck of pickled peppers.  Where's the peck of pickled peppers Peter Piper picked?  Peter Piper put the peck of pickled peppers in the pantry.

She sells sea shells by the sea shore.

Toy boat toy boat toy boat. (Say that one quickly.)

Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.

John, where Jake had had 'had', had had 'had had'; 'had had' had had the teacher's approval.

Longest word: Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters)

Trentatre trentini entrarono in trento, tutti e trentatre trotterellando.

Longest word: precipitevolissimevolmente (26 letters)

Fischer

Fritz fischt frische Fische. Frische Fische fischt Fischer Fritz.

Longest word: Rindfleischetikettierungsüberwachungsaufgabenübertragungsgesetzeshüter (71 letters)

Possibly more to come.