All the Stripes helped solve that problem by combining what look like totally different yarns into one cohesive shawl. All the Stripes uses 4 skeins of fingering weight (some can be leftovers!) using side to side shaping with a slip stitch edge which then allows you to pick up stitches to add your bottom edging.
The stripes run completely different ways for a graphic and bold shawl to add to your wardrobe. All the Stripes uses KFB for its simple shaping and slip stitches for the edge. The i-cord bind off is probably the most 'challenging' part of the shawl but it's very easy to knit.
All the Stripes, with its side to side shaping, is easily customizable to reach the size you want. If you'd prefer a shawlette size versus a shawl size then you can start your decreasing section earlier. Your knitting is supposed to work for you, not just for you to follow the pattern. So, take a dive through your stash, see which yarns have been sitting lonely for a while and check out All the Stripes!