This candy is supposed to be rustic, so decorating is definitely not required, but if you wanted to add a little flair, adding a sprinkle of fleur de sel before the pralines have set would add a crunchy yin-yan to the candy. Additionally, drizzling melted dark or milk chocolate over the pralines would cover the sugar blooms and add a rich, decadent coating. Just be sure the chocolate isn't too hot before drizzling over the candies, so that it doesn't melt the praline base.