Intro:
Sort of country strum like this ():
eI------0-------0-------0-------0-------0-------0--------------------------- | I
BI------1-------1-------1-------1-------1-------1--------------------------- | I
GI------0-------0-------0-------0-------0-------0---------------------I----- |  x2
DI------2-------2-------2-------2-------2-------2--------------------------- | I
AI--3---3-------3---3---3-------3---3---3-------3---3-------0---2---3------- | I
EI------3---3---3-------3---3---3-------3---3---3-------3------------------- | I

Chorus:

C                                              C *   G
I was walking down the road and I saw a donkey hee haww
and he only had 3 legs
           C                             G              C
he was a , wonkey donkey, wonkey donkey, wonkey donkeyyyeah

Verses

and he only had 3 legs and 1 eye
he was a winky wonkey donkey, winky wonkey donkey, winky wonky donkey

and he only had 3 legs and 1 eye and he liked to listen to country music, yee ha
he was a honkey tonkey, winky, wonkey donkey,honkey tonkey, winky ,wonkey donkey,

and he only had 3 legs and 1 eye he liked to listen to country music and he was 
quite tall and slim
he was a lanky, honkey tonkey, winky, wonkey donkey,lanky,honkey tonkey, winky, wonkey donkey,

and he only had 3 legs and 1 eye, he liked to listen to country music, he was quite tall
slim and he smelt really, really bad.
he was a stinky dinky, lanky, honkey tonkey, winky, wonkey donkey,stinky
tonkey, winky, wonkey donkey,

and he only had 3 legs and 1 eye, he liked to listen to country music, he was quite tall
slim , he smelt really, bad and that morning he got up early and hadn't had any coffee.
he was a cranky, stinky dinky, lanky, honkey tonkey, winky, wonkey donkey,cranky,stinky
tonkey, winky, wonkey donkey,

and he only had 3 legs and 1 eye, he liked to listen to country music, he was quite tall
slim , he smelt really bad, he got up early in the morning and hadn't had any coffee but
was always getting up to micheif.
he was a hanky panky, cranky, stinky dinky, lanky, honkey tonkey, winky, wonkey
panky,cranky,stinky dinky,lanky,honkey tonkey, winky, wonkey donkey,

and he only had 3 legs and 1 eye, he liked to listen to country music, he was quite tall
slim , he smelt really bad, he got up early in the morning and hadn't had any coffee, he
always getting up to micheif but he was quite good looking
he was a spunky, hanky panky, cranky, stinky dinky, lanky, honkey tonkey, winky, wonkey
panky,cranky,stinky dinky,lanky,honkey tonkey, winky wonkey donkey,

Song structure:
Intro, Chorus, Verse, Chorus Etc., ending witha Chorus