If you want to use a DK weight yarn for a project, but want a light or delicate look, don't consider yourself confined to DK weight yarns. Lace weight mohair can be a lovely alternative.
Many pattern stitches in crochet look like lace when worked in mohair in a loose gauge. And lace weight mohair and mohair blends are often far softer than heavier mohairs. Best of all, if you like mohair or fuzzy yarns in general, lace weight versions give you the wonderful texture without all the bulk.