Making random house blocks!

You know that "Fifteen Minutes of Play" book/concept? Well, I love it, but 15 minutes is hardly enough time to begin.  But I do love to play.  I have made four more of those bright, blinding house blocks. What fun! Meanwhile, I have decide to use the first one as part of a tote bag.  I am just beginning to make it a little larger; 'growing it' with some black fabric that will really make it stand out.  Here is what I have so far. I just put 1 1/2 " strips around the block and trimmed it square.  I think I will use the gray/pink/orange floral as the main fabric for the bag, so I will add some of that next.