This block is very simple - just a square, bordered by the same fabric all the way around. In this instance, I did half the blocks with the odd white-looking fabric as the centre and half with the coloured fabrics. Or that was the intention. As it happened, I counted wrong, and ended up with 16 and 14, which meant that arranging them took a little creativity. But I often use this square in a border block for scrap quilts - it's simple, yet effective.
Here's another use of essentially the same block, only in this instance, the centre of the square is much larger to start with, so it makes more of a feature of the centre.