We bless our palms today on Psalm Sunday with this prayer:

God our Savior, whose Son Jesus Christ entered Jerusalem as Messiah to suffer and to die, let these palms be for us signs of his victory; and grant that we who bear them in his name may ever hail him as our King, and follow him in the way that leads to eternal life; who lives and reigns with you and the Holy Spirit, now and forever.  AMEN.