Come with me on a journey into how my brain works.
I had this scrap of rubber:
I carved a quick pattern stamp out of it:
Then I tried printing it tip-to-tip:
That empty rectangle gave me an idea! I took another scrap and cut it in half:
See how that little rectangle nests (sort of) perfectly into the empty space?!
I ended up trimming both scrap halves so that they fit a bit better and then carved them into pattern stamps:
And here's what it looks like when they all come together:
And in color: