Patchwork Puzzler

I have finished sewing the Kaufman jelly roll that my Mum bought me at Festival of Quilts. I'm just not sure what to do with the strips now.

I could sew them to each other, or I could add a white or off-white border between and around them. It's going to be an inbetween size though unless I add more and that would involve buying more fabric which I don'…