Almost done

I'm going to Hawaii next week. I'M GOING TO HAWAII NEXT WEEK!!!!!!!!!!!!!!!!!! Okay, I've got that out of my system. But because I'm going, I realized that if I could finish the Pinwheel Sweater, it would be weather appropriate for Hawaii. I already had the body done. I had the sleeves all knitted. I had done more than half the crochet work on one sleeve and it had gone really quickly so I figured, heck, I could have this done before the weekend and because it's cotton, I can throw it in the washing machine and the dryer! Well, okay, I'll do spin cycle and let it air dry so that I can block out the crochet lace edge.
But as I was browsing ravelry, I stumbled upon this version. It's not necessarily the sweater that I'm looking at but the button closure. I'm not sure how she put it on. If it were me, I wouldn't sew it on since this sweater can either be worn as a long sweater, or you can turn it upside down and wear it as a short sweater.
This puts and idea in my head. I can make a toggle bar with peyote stitch. I can then attach the toggle bar to either a button or some large crystal rivoli that I've captured. This would result in what is basically a cuff link that's a button closure for my sweater. The lace chains are small enough that I don't have to make a gigantic toggle. Hmmm...Well, I've got the weekend :)