Couples seeking the perfect place for a wedding ceremony will surely find it against a backdrop of bursting Fourth of July fireworks on their own private-island resort at Little Palm Island Resort & Spa. The resort in the Lower Florida Keys sits on a 5.5-acre, palm-fringed island, accessible only by boat or seaplane. The We Saw Stars island-buyout package ($215,000) provides exclusive access to the property and is available for the weekend of July 3 through 5, 2015, with food and accommodations for up to 6…