Intended as a scrap yarn project, but designed with intention, as explained in the tutorial provided with this project. Use up those tail ends or what others would call scrap yarn. 
 
Random colour of partially used Bernat Blanket yarn balls. You can make this as big as you need. 
 
You can substitute the hook and yarn, as long as they match, and you should be good to go. 
 
Bernat Blanket, partially used balls. 
 
Hook: 8 mm / L/11
 
Gauge: Non-relevant.
 
Measurements: Approx 52” square.