Summer is great for big floppy hats that, as an added perk, keep the sun out of your face.
Quick note about rings, if you go that route, don't get anything too expensive... your ring size will also go down with your dress size.
Bonus tip: I've used these kind of clips to get more mileage out of too-loose pants. They're meant to be worn stirrup style but can be clipped to the back belt loops for a half-belt that doesn't add a bulky buckle to the front.