Source: Danny Griffin
And here we have more on St Patrick's Day
St. Patrick's Traditional Symbols
Shamrock Leaves
The shamrock leaf is the most significant symbol for, not only St Patrick's Day, but also, of Ireland as well. This leaf is also known as the 'seamrog' or the summer plant which is shaped like a three - leafed clover. According to an ancient Irish belief, this leaf was said to possess magical properties.
The Harp

The harp is an Irish symbol, found in ancient Irish carvings, Irish coins, flags and is also used for traditional decorations on St. Patrick's Day .
Green Color

Shillelagh

Shillelagh was the name of an oak - forest in County Wicklow, hence a club made from an Oak was often called a 'Shillelagh'. Little children carry plastic Shillelaghs on this occasion.
Leprechaun

A little gnome-like man with magical powers is the Irish counterpart of the conventional fairy. He is supposed to have a hidden pot of gold.
Blarney Stone

There is custom to kiss the Blarney Stone on this day. This stone is set on the wall of the Blarney Castle Tower in a village named Blarney in Ireland. Any one who kisses the Blarney Stone is supposed to receive the gift of 'persuasive eloquence' (the ability to speak convincingly). It is believed that St. Patrick had a winning personality that enabled him to fulfil his mission of converting almost the whole of Ireland into Christianity.
Read more at http://www.kidsgen.com/events/st_patricks_day/symbols.htm
The Harp
The harp is an Irish symbol, found in ancient Irish carvings, Irish coins, flags and is also used for traditional decorations on St. Patrick's Day .
Green Color
The color green signifies the onset of the spring season and is also the color of Shamrock leaf.
Shillelagh
Shillelagh was the name of an oak - forest in County Wicklow, hence a club made from an Oak was often called a 'Shillelagh'. Little children carry plastic Shillelaghs on this occasion.
Leprechaun
A little gnome-like man with magical powers is the Irish counterpart of the conventional fairy. He is supposed to have a hidden pot of gold.
Blarney Stone
There is custom to kiss the Blarney Stone on this day. This stone is set on the wall of the Blarney Castle Tower in a village named Blarney in Ireland. Any one who kisses the Blarney Stone is supposed to receive the gift of 'persuasive eloquence' (the ability to speak convincingly). It is believed that St. Patrick had a winning personality that enabled him to fulfil his mission of converting almost the whole of Ireland into Christianity.
Read more at http://www.kidsgen.com/events/st_patricks_day/symbols.htm