10 stitch Blanket - it spirals till you run out of yarn. And you only need a pair of little double-pointed needles to do a whole blanket. None of the tedious pick-up-stitches across a whole long seam, as you have to with most "log cabin" patterns.
Crochet - Granny Spike Stitch - leaves fewer gaps, because the second double crochet is crochet through the top of the second double crochet of the row below. Possibly use a dc,tc, dc pattern in the clusters? From Do It Darling.