this pretty "Down and Derby" party designed by Julia Lake and Brita Olsen for Camille Styles. I love that they incorporated vintage tickets from real horse races.
For a last minute DIY project, try these free printable Kentucky Derby Drink Flags by Mint Love Social Club. And make sure you follow this blog always - Natalie is constantly creating beautiful and approachable event design ideas.
And if you need inspiration for men's attire, I love the look of this gentleman on Classy Girls Wear Pearls.