Here are two that even an Anglophone can say.
Ye Olde Frenche Alliterative Worde Playe #1:
Si six scies scient six cigares, six-cent-six scies scient six-cent-six cigares.
It means "If six saws saw six cigars, six-hundred six saws saw six-hundred six cigars", but the fun part is the pronunciation. Written out in English (or Spanish, "si"), what it sounds like is: SI SI SI SI SI SIGAR, SI SAHN SI SI SI SI SAHN SI SIGAR. The game is that si, six, scies and scient are all pronounced identically: "Si".
Ye Olde French Alliterative Worde Playe #2:
Ton tonton ton ton tonton. Ton tonton, ton tonton ton.
It means "Your uncle plays (lit. 'sounds') your toy. Your toy, your uncle sounds."
Ye Final Olde Frenche Worde Playe:
Everyone has heard Descartes' famous line:
"Je pense, donc je suis." - I think, therefore I am.
Never content to leave edifices of marble unmocked, the average Frechman can be heard saying, on a hot day:
"Je panse, donc je m'essui." - I sweat, therefore I wipe.
The trick is that it's pronounced the same, except for the "m'eh" before the "suis".
A Japanese farmer owned a horse and a Chinese neighbor had a cow.
The Japanese accused the Chinaman of stealing his horse's feed, and received the following reply:
"Horse no can kaukau cow kaukau. Cow kaukau cow kaukau."
lol - I have told people in Spanish numerous timed that I am pragnant [embarrassed] or married [tired] after a long day's travel.
Great work above. Languages are fascinating things! My great-uncle, a JAG lawyer, had books and books on the history of language and the development of modern English. I did a couple of projects in college using his library and found it amazing how things are interconnected and nuanced [in a non-Kerry way] to the tongues we use today. I wish I had studied at an earlier age to become fluent in more than one!
And just what kind of funny uncles do they have in France?