Canadian Hummer Club Forums

You can get the bubble heads too. I'm sure they come in several styles and colors.
One example
http://www.ebay.ca/itm/32-Lug-Nuts-8-Lug-9-16-X18-Dually-For-Alcoa-Wheels-Ford-Dodge-Chevy-Truck-7609-/201550784469?hash=item2eed5ce7d5:g:Z-cAAOxyVX1Ruhb9&vxp=mtr

I ended up getting spline nuts for a Dodge.
I like them. They do stick out a bit but i never use my wheel covers anyway.