Blanket Beware

So I have been knitting for over two years, I really enjoy loom knitting, it is a quik, inexpensive way to create gifts. I started this because I have such a large family during the holidays they come out the wood works. Now they know their gifts are handmade. They love them. I AM STUCK!!
I am making a diamond pattern blanket and the center I have not fill it yet, I wanted to make like a flower in the center instead of the usual sqaure, how do I do this? I know how to make the small flowers, I am wondering if I could do the same with a large round loom for the center would this work?