¿op ı op ʇɐɥʍ 'dɐɹɔ ˙sıɥʇ ǝʞıl ʞɔnʇs ɯ,ı ʍou puɐ
¿uıoɾ uɐɔ ı qnlɔ ɐ ǝɹǝɥʇ sı
I agree completely.
What?
OK—quite cute. How did you do that? 
ɥʇnǝ 'ʇǝɹɔǝs ɹnoʎ ƃuıןıods ɹoɟ ʎɹɹos˙ןnɟǝʇɐɹƃ ʎןןɐuɹǝʇǝ ɯ,ı 'sʞuɐɥʇ
˙ɥƃnoɥʇ pɐǝɹɥʇ ǝɥʇ puıɟ oʇ ʎzɐן ooʇ ɯ,ı ˙ǝɹoɟǝq ǝuop uǝǝq sɐɥ sıɥʇ
˙ɯnɥ oɥ ˙spɐǝɹɥʇ ǝsǝɥʇ ɟo ǝuo ɹǝɥʇouɐ ˙ʇɐǝɹƃ 'ɥo
˙ǝɹoɟǝq pǝʞɔol sɐʍ ǝɹǝɥ ǝuo ɹɐlıɯıs ɐ ˙ɥƃnoɥʇ 'pǝʞɔol ǝq uoos llıʍ pɐǝɹɥʇ sıɥʇ ʇɔıpǝɹd ı ˙ǝuo ɹǝɥʇouɐ sı ǝɹǝɥ ˙sıɥʇ op uɐɔ noʎ ǝɹǝɥʍ sǝʇıs lɐɹǝʌǝs ǝɹɐ ǝɹǝɥʇ
¡sıɥʇ ǝʞıl ɹǝʇʇǝl ʇxǝu s,ssoq ʎɯ op oʇ ǝʌɐɥ ı
ƃuos ǝɯǝɥʇ ƃuıɯɯnɥ sʇɹɐʇs
˙ƃıd-ɹǝpıds ʎןqıssod ɹo ¡uɐɯ-ɹǝpıds ǝʞıן ןǝǝɟ ı
I like how in the first comment that I came across on that site was someone upsidedownedly saying
nice use of those upside-down o’s there, Mr Cummings.
with apologies to señor cummings.
˙rightsideup ǝɯoɔǝq they 'ɹǝʇɹǝʌuoɔ the uı words uʍopǝpısdn put noʎ if ˙ןooɔ kinda sı that ןןǝʍ
well ʇɐɥʇ is ɐpuıʞ cool. ɟı you ʇnd upsidedown spɹoʍ in ǝɥʇ converter, ʎǝɥʇ become dnǝpısʇɥƃıɹ
Incidently, if you cut and paste my post into the converter, the output is the same as the input.
Good luck searching for it. 
ppo ʇnq ƃuıʇsǝɹǝʇuı - sǝxoq ǝɹɐ ǝǝs ı ןןɐ
˙ʎǝʞɔɐʇ ʎǝʞɔıʇ ɟo ǝʞɐɯ sǝxoq ǝןʇʇıן 'ǝpıs ןןıɥ ǝɥʇ uo sǝxoq ǝןʇʇıן
Damn, for a second I thought it was something in Greek and I was trying to pronounce it phonetically.
ʇɹɐq dn ʞɔıd
Not to be a Junior Mod or anything, but…http://boards.straightdope.com/sdmb/showpost.php?p=10195098&postcount=15
˙˙˙ʍou sʇɹnɥ pɐǝɥ ʎɯ