Barns and no-bulls. (This joke was made up by my 7 year-old cousin.)
Ironic
A hobbyte Cortana told me that joke
They consume a lot of vitamin SEA!
They have a lot of boos but no water
Decom-pose.
Engineers
A reservation reservation reservation. Credit to Brian Regan, this is my favorite joke of his!
Tequila Mockingbird.
An eggroll!
All the cows have horns
A bull.
Hamburger!
On a shellphone! My 7 year old self was very proud of coming up with this one....
E-I-E-I-O.
Because they are out standing in their field.
Because they can only say "neigh!" I wish this was a joke made up by my 7 year old cousin, but she's imaginary.