You never want to wait for the day of an event to find a clutch- I suggest collecting these as you find and fall in love with thim.
The Ingra Pel Cipres Clutch is just the right price (less than $100) and yet still a unique style and quality build. The retro hard case and envelope shape can be girly or modern.
The best part: if your drink spills, no harm no foul. Your cell will be nicely protected inside.