Those just look like regular raglan-type decreases....so on the hat, place 4 markers evenly around when you are ready to decrease. When you get to two stitches before the marker, SSK. Then slip the marker over, K1, then K2tog. Knit one round even between each decrease round.
Ariann Cardigan in Brown Sheep Cotton Fleece - 11 inches and two buttonholes done!
Tomato from No Sheep for You in Cotton Ease - nearly done! One sleeve left.
Tuscany from NSFY in Elsebeth Lavold Silky Wool - it's working up beautifully.
Montego Bay Scarf from Summer 07 IK Knits in Sea Silk - an indulgent knit