Buttons on a suit should surely be of horn. MoP is for shirts.
As to button holes, leave them in the form they came, the quaint US custom of adding working holes seems somehow false. Making a silk purse out of a sow's ear comes to mind.
As to button holes, leave them in the form they came, the quaint US custom of adding working holes seems somehow false. Making a silk purse out of a sow's ear comes to mind.