Save the faff of digging out the die-cutting machine with our fabulous templates.  Draw around them or you can use a craft knife to cut them out.
 
7 circle templates in each set 11" and 11.5" diameter sets:
11" Circle set - 11", 9.5", 8", 6.5", 5", 4", 3"
11.5" Circle set - 11.5", 10", 8.5", 7", 5.5", 4.5", 3.5"