This little leprechaun stayed home.
This little leprechaun picked a shamrock,
This little leprechaun found some gold.
This little leprechaun cried, "See if you can catch me,"
As he ran home. (taken from below link)
Want more: http://www.kidsparkz.com/preschoolsingsstpats.html

Set up time: 5-7 min
Time it took my children to make craft: less then 10 min

Cut into smaller pieces and serve it up.
For a baby starting solids- cut avocado into quarters(big enough for them to hold into fist) and let them chew away on it. If they are teething put avocado in fridge(if the seed is still in it, it won't turn brown) then cut when colder.
138 calories and 14.1 grams of fat and 3.4 grams of fibre in half an avocado