I've made many many "mile a minute" quilts. Here's the tutorial- they're super simple:
http://quiltingisstillmypassion.blogspot.com/2007/07/mile-minute-blocks-photo-tutorial.htmlHere are a few of the ones I've made:


I love that you just whack the larger scraps down to strips with a rotary cutter and ruler, and then have at it. They end up all jumbled and cute, then I square off the edges of each block and put the squares together. I don't use a foundation, because I like the look when they get a bit uneven as you sew. They're squared off before sewing together, so that means I don't really need something to keep them stable as they're going together. I think the foundation would help if you don't want that look.
And totally gratuitous cheesy picture of my nieces and nephew with their quilts:
