Today is St. Patrick's day, which means there's a lot of this online:

Lá Féile Pádraig shona duit

or this:

Lá Fhéile Phádraig sona duit

or basically any variation of:

Lá F(h)éile P(h)ádraig s(h)ona duit

which all roughly mean 'Happy St. Patrick ...