Have you tried lace knitting? Here's my first attempt—a sampler scarf—using two lace patterns with rows of garter stitch between. The yarn, Alpaca Prima by Plymouth Yarn, is a 100% superfine alpaca fiber. The scarf took only one hank (363 yards/100g) and the periwinkle blue is color No. 1600. This yarn also comes in several other beautiful, rich solids and heathers.
This sampler is comprised of two stitch patterns: Herringbone Faggot (a single row reversible pattern) and Trellis Lace (a four row repeat). Other lace patterns could be incorporated provided they had the same multiple of stitches. One enjoyable thing about working a sampler is the variety—if one pattern is not your cup of tea, there is another one coming up shortly. It keeps your mind engaged.
Our knitting instructor listed this project's skill level as "intermediate," but if you are a confident beginner looking for a bit of a challenge, give lace knitting a try.