I use wooded plugs for this purpose.
http://www.widgetco.com/wood-buttons (I dont buy mine there thats just an example, I buy mine from depot or rockler...now that Im looking at it the web is a better deal.)
they work great, just glue them on and then paint! I have also found really cool looking upholstery tacks that I have done the same with them here is an example of those
with some looking you can find some big cool looking ones.