May the sun shine, all day long,
everything go right, and nothing wrong.
May those you love bring love back to you,
and may all the wishes you wish come true!
~Irish Blessing
and this one just made me laugh:
May those that love us, love us.
And those that don't love us,
May God turn their hearts.
And if He doesn't turn their hearts,
May He turn their ankles
So we will know them by their limping.
~Irish Blessing
You can find more here, Irish Blessings.