I saw a really cute vest from a Japanese knitting book call Men and Women's Knit on Agnes's website.
I love the diamonds going across the front. Here's the link to Men and Women's Knit on YesAsia.com
Orlane also has some pictures from the book here. The hoodie vest looks great too.!
I may need to look for this book the next time I'm at Kinokuniya (where I need to stay away from right now because I need to spend money on gifts for OTHER people!)