The Cat

the cat
is on
the mat
with a hat
and a bat
ready to scat
another rat
with a fat
mat
where he sat
and wanted to chat
poor cat
with his bat
on the mat
with a hat
and a bat
next to a rat
who sat
and wanted to chat

(Source)

Yellow Dog

The yellow dog
who ran into the fog
tripped over a clog
tried to eat a hog
slumped over a log
from too much egg nog

(Source)