Sparge for Picnic Cooler Tun

Any suggestions on devices to help automate sparging? I am using a picnic cooler mash/lauter tun.  To date, I have been ladling sparge water with a 1qt cup onto a plate held above the grain bed (using gloves of course).  It can be a pain, especially when I’d rather be measuring the runoff pH and grav.

Thanks for any ideas.