This really isn't related to Christmas... but my Daddy used to say this when we were little. 
He would say it first, then we would repeat it (or at least try!). 
Have someone read each part to you and see if you can repeat it without messing up!

1 hen

1 hen,
2 ducks

1 hen,
2 ducks,
3 squawking geese

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises,
6 pair of Don Alberzo's Tweezers

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises,
6 pair of Don Alberzo's Tweezers
7 thousand Macedonians in full battle array

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises,
6 pair of Don Alberzo's Tweezers
7 thousand Macedonians in full battle array,
8 apathetic sympathetic old men of roller skates with a marked propensity towards procrastination and sloth

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises,
6 pair of Don Alberzo's Tweezers
7 thousand Macedonians in full battle array,
8 apathetic sympathetic old men of roller skates with a marked propensity towards procrastination and sloth,
9 Don Juan who dine on swine and fine wine

1 hen,
2 ducks,
3 squawking geese,
4 limerick oysters,
5 populent porpoises,
6 pair of Don Alberzo's Tweezers
7 thousand Macedonians in full battle array,
8 apathetic sympathetic old men of roller skates with a marked propensity towards procrastination and sloth,
9 Don Juan who dine on swine and fine wine,
10 menacing denizen of the deep who hold quim in the quay of the quarry by the sea.