We call them
Rainy Day quilts.
Here are some of mine (I'm not going to repost the pictures - link to prior post below):
http://www.quiltingboard.com/pictures-f5/there-name-quilt-pattern-t121803.html#post3209393
edited to add: these are uncut blocks.
When they're cut into quarters and rearranged, they look like this: