Damsel Hats
From My Little Wiki
These Damsel hats came with the First set of princess ponies. Damsel hats released in Europe tend to have a slightly different colour variation.
Came with Princess Tiffany
Came with Princess Primrose
Came with Princess Sparkle
Came with Princess Starburst
Came with Princess Serena
Came with Princess Royal Blue
Came with the Dream Castle
Came with UK Princess Amethyst
Came with Princess Amber Variant III
Came with UK Princess Aquamarine
Came with Princess Amber
Came with Princess Pearl
European/German, came with Princess Starburst?