Karen from faeriesandfibres.blogspot.com has the most wonderful sew-a-long. She posts clues every two weeks for a medallion style wall hanging. She offers so much support though. Examples of others work, tutorials and explains things so well.
I had a hiccup when I started though. I did not do the hexie download properly and my hexes turned out to be too small. I had already cut and basted the pieces. Oh well, it is fixed now and I have everything correct and as it should be.