Over the years I have photographed many wedding exits. Some are as simple as bubbles and others are far more over the top, literally. For instance, in the image below the happy couple planned a helicopter getaway. Since the helicopter was in an empty field with no light what so ever, I placed a wireless flash in front of the helicopter about 30 feet away and shot with a telephoto lens to capture her joyful expression. 

Couple: Brandon & Christina
Mood: Joyful
Type: Candid
Time: Night
Camera: Canon 5D Mark II
Lens: 70-200mm 2.8L  at 2.8
Shutter 1/125
ISO: 4000
WB: 5600
Lighting: Off Camera Flash