We’re all from Kentucky when Derby Day rolls around. “It’s such a quintessential southern occasion and a great excuse to entertain no matter where you are,” says Charleston, South Carolina–based event designer Tara Guérard , who has planned celebrations for the likes of Blake Lively and Ryan Reynolds . “And who doesn’t love drinking out of a julep cup?” But while the event itself is steeped in tradition, there are plenty of ways you can put a creative spin on the classic Kentucky Derby party to make it unique and memorable for all of your guests. Start with a signature cocktail, pepper in some equestrian-themed decor, follow through with a southern-inspired menu, and you have all the makings of a festive fête. Here, Guérard shares some tried-and-true ideas to get you started. The decor Make a statement with a large centerpiece. Photo: Anne Rhett, courtesy of Tara Guérard There are lots of ways to bring southern charm to your party.…