Yes, playing card boxes can have holographic or metallic foil finishes applied to them for an opulent and striking look. The visual appeal of your packaging can attract more buyers and boost sales. You can get these boxes with a matte or gloss coating. The matte coating can help to give these boxes a diffused appeal, whereas gloss coating will give them a shinier appeal. Besides that, you can give them a metal-like appeal by using silver, gold, or copper foiling. Several finishing options, including smudge-free, velvet coating, PVC, raised ink, and others, are also available to give playing card boxes a luxurious touch.