Here’s a nice idea to knit a keyhole scarf with just one skein of lovely Malabrigo Silky Merino (if you have not yet joined Ravelry, you can access the pattern here but do request an invitation today, Ravelry is a must-have for all knitters).
Malabrigo Silky Merino, 50% Silk, 50% Baby Merino, 150 yds per 50 gm skein