To use these black acrylic teardrop crystals, first decide where you want to hang them. You can use monofilament or fishing line to thread through the tiny hole in each crystal. For a wedding, you could hang them from the ceiling to create a dreamy atmosphere. At a party, they'll add a bit of sparkle. Remember, these crystals don't come with strings or other decorations, so you'll need to provide those yourself. To maintain them, just use a soft cloth to wipe off any dust. Keep them away from sharp objects to avoid scratches. With proper care, they'll keep shining for a long time and make your events and home look amazing.