My aunt Mary Jane mentions the "M R ducks" thing pretty frequently.  She says it's part of the Iowa Basic Skills Test, but it can be attributed to any dumb-sounding group. 

Original
M R ducks
M R not
O S A R
C M wangs?
L I B! M R ducks

M R snakes
M R not
O S A R
C M B D eyes?
L I B! M R snakes

M R mice
M R not
O S A R
C M E D B D feet?
L I B! M R mice

M R farmers
M R not
O S A R
C M M T pockets
L I B! M R farmers

M R puppies
M R not
O S A R
C M P N
L I B! M R puppies

Translation
Them are ducks
Them are not
Oh yes they are
See them wings?
Well I'll be!  Them are ducks

Them are snakes
Them are not
Oh yes they are
See them beady eyes?
Well I'll be!  Them are snakes

Them are mice
Them are not
Oh yes they are
See them itty bitty feet?
Well I'll be!  Them are mice

Them are farmers
Them are not
Oh yes they are
See them empty pockets?
Well I'll be!  Them are farmers

Them are puppies
Them are not
Oh yes they are
See them peeing?
Well I'll be!  Them are puppies
I found a new one while searching for this.  It's a conversation between two Swedes at a restaurant. 

Original
F U N E X?
S V F X
F U N E M?
S V F M
O K M N X!

Translation
Have you any eggs?
Yes, we have eggs
Have you any ham?
Yes, we have ham
Ok, ham and eggs!
#language