Maura, I found this online. I hope it helps.
The moment the priest/minister asks for the rings, after the vows he calls for the arras, and each one (you and your fiancee) have to say:
-He goes first: "here are this arras, as symbol that nothing would be missing at our home"
-You accepting them: "I accept them, as symbol of the care I would have for our home"
and that's it for the arras.
For the lazo, after the little act of the arras, the couple stands up, and covering your fiancee with your Veil, they put one side of the lazo to you, and one to your fiancee. It's stays there after both of you have received communion, and after that they take it away.