Originally Posted by the casual quilter
I'd do the same as leatheflea suggested. I've done that with
t-shirt quilts when the motifs weren't the same size and it worked pretty well. You can use more than one border in different colors in different colors on some of the blocks also and you can use fish print fabrics in some borders.
And if she wanted an underwater look, I would use only the solid blues for the fill-in pieces. the fish would seem to be swimming underwater.