There's lots of star/starburst patterns that would be perfect to be centred into your circle.
You coudl look for spider web patterns for your circle.
Also, you could fussy cut most anything and build out from there for your circle.
Another idea ... how about hexagons/octagons, either left as is, or rounded out?
Last edited by QuiltE; 03-12-2012 at 10:50 AM.