A hat with bobbles

"Experimental" is how I would describe my crochet style. I often crochet without consulting a pattern and just follow my intuitions. However, a lot of my intuitions are probably guided by the patterns I saw somewhere on the web. A lot of patterns I look at are listed in Crochet Pattern Central.

I like special stitches. They break the monotony of doing the same stitches all around. So I enjoyed making this hat, which has bobbles spread at every 10 stitches in every second row. I thought I was going to be clever so the bobble happens at the 10th stitch first round, then at the 5th, to spread them in an "interesting" way.

The result? I am not sure. It looks kind of bumpy.