Take a look at http://refugeforums.com/refuge/showthread.php?t=177416
That is a link to Refuge Forums , decoy how to

They have a how to on carving foam decoys ( blue or pink foam board )and how to burlap them .

I have 3 dozen super mag duck decoys almost ready to burlap
I will start colecting scrap foam board for the next batch

Johnch