Here is a picture of my blue and white pineapple table runner. It was created using some great batiks from Heart and Hand Dry Goods in Sioux City, IA. This was my first attempt at paper piecing. I paper pieced the pineapple and then used a new ruler from creative grids to make the flying geese on the edges. I really like it and it can create circles too. I then turned the geese sideways and together to form those diamonds on the sides. I think this really adds to the overall look of the runner. 
See a bit about the quick trim ruler with this video link. It was posted from creative grids on YouTube. 
I wouldn't use the quick trim ruler for lots of circles. For lots of circles I like to use the Cut-A-Round ruler. To the left is a picture from Sara in Sioux Falls, SD with a demo on the Cut-A-Round. I like it much more than the "circle cut" ruler. It is harder to find but worth it. I know you can order it from Sara at Heirloom Creations in Sioux Falls SD if you can't find it local. The reason I like it so much is because it is designed to have the fabric folder in quarters. When cutting a circle the shape of this ruler makes it much easier to fit a rotary cutter into than the more common Circle Cut ruler. Give this one a try if you like making circle quilts.
It comes in a few sizes to create about any size circle you would need.
-amy
