For the glaze, combine water and corn syrup in a small saucepan. Heat to a boil, then immediately remove from heat and brush the marzipan with the glaze. Let dry for 30 minutes.
Pair the rose petals with mint leaves and sprinkle with powdered sugar. Arrange marzipan around.
*RAW EGG WARNING
Food Network Kitchens suggest caution in consuming raw and lightly-cooked eggs. Due to the slight risk of Salmonella or other food-borne illness. To reduce this risk, we recommend you use only fresh, properly-refrigerated, clean, grade A or AA eggs with intact shells, and avoid contact between the yolks or whites and the shell.