The problem with many variegated yarns is that while they look fantastic on the skein, they pool badly and look rather ugly when knitted up.
However I think I have now found the ideal shawl pattern that makes the most of a good variegated yarn - Carina Spencer's Faraway, So Close Shawl.
I found this pattern while browsing Ravelry wondering what to make with my Mosaic Moon BFL Aran yarn in the Snow Blossom colourway. The yarn was deliciously soft but seemed a bit intense for anything I had in mind. One thing I noticed, however, was that every single Faraway, So Close Shawl made with Mosaic Moon yarn looked fantastic, no matter what the colourway.
I had 3 skeins of Snow Blossom plus a choice of 2 trims (green or pink), so plenty of yarn to make the large size version of the shawl.
I've already knitted up one skein (in just 2 days despite having to go quite slowly and take lots of breaks due to the crap-al tunnel) and am very impressed with how the shawl is turning out. This pattern could have been designed just to showcase the variegated Mosaic Moon yarns - very easy and fast knit that gives a lot of ‘bang for the buck’ in terms of results.