I read this last month and love it–this is how I hear these prayers in my head at church now. Thanks to the excellent One Climbs site for this idea:
O God, my Eternal Father, I ask thee in the name of thy Son, Jesus Christ, to bless and sanctify this bread to my soul as I partake of it; for I eat in remembrance of the body of thy Son, and witness unto thee, O God, the Eternal Father, that I am willing to take upon myself the name of thy Son, and always remember him, and keep his commandments which he has given me, that I may always have his Spirit to be with me. Amen.
Check out the original post for the water prayer.