Here's a graphic antique quilt that alternates two blocks.
On the left a snowball kind of block with the corners cut off;
on the right a nine patch of stars
The quilt was on the cover of the Quilt Engagement Calendar
thirty years ago. And I thought it was one of a kind.
But here's the same pattern.
I found this antique in an issue of Quilters' Newsletter
about ten years later. Same design but the two
blocks are on point.
It's a more complex variation of BlockBase #1001,
which has been well-documented
and has many published names.
A nine patch plus a snowball.
Here's another variation---How old I can't tell
from the tiny picture, but it's a double nine patch
alternating with the snowball.
Another double nine patch and a busy blue print
From the Massachusetts Project and the Quilt Index:
Double four-patch alternating with a red framed snowball
from about 1900
Same idea, lots more squares.
I suppose you could alternate any block with the snowball.
Here it is with Winding Blades from about 1900.
Although some are going to work better than others.
Rolling Star alternate block, top from about 1900
I was browsing through Snowball patterns
in the Quilt Index and came across this one from the Arizona Project
alternating a Spiderweb and a snowball.
The straight seams look like curves.
Tioga County Historical Society Collection
Or do it in strips?