Encourage guest to wear their favorite shoes by featuring a shoe contest at your event. Promote the contest in marketing materials leading up to the event informing guests of prizes for different categories. Contest provides an excellent sponsorship opportunity for a local business who can donate the prizes. 

Here are a few category titles:

Wonderful Wedge • Sassy Stiletto • Fabulous Flat • Bodacious Boot • Playful Platform • Classy Classic Sensational Straps • Vixen Vamp • Power pump • Elegant Exotic • Embellishment Extraordinaire