And this is what I did with my last two Mondays. It's meant to be a table cloth but I don't think I'll use it for that. I also think it needs a two layer border to finish it off.
For those who are interested, we used 39 5" squares from a charm pack and I bought a metre of background fabric but didn't use all of it (the store had a buy one metre, get one metre free deal on, so it was actually economical for me to get the whole metre.
P.S. This is a very bad photo.