A while ago I saw the most beautiful wool by Scheepjes, called Whirl, turning from one color into another while crocheting or knitting. I loved the wool but didn't really know what to make with it, until I found this (free) pattern for a blanket.
The blanket is really easy to make. When you're a tight crocheter, like I am, I would recommend to use a larger hook or more wool to get a bigger blanket. The pattern says the blanket will be about 104 cm wide after 37 rounds, but even after doing 50 rounds, my blanket only measures just 90 cm.