Blue Mystery Capsule - Green Leafy Wings
Red Mystery Capsule - Ostentatious Masquerade Mask
Halloween Mystery Capsule - Appetising Caramel Apple
Green Mystery Capsule - Inconspicuous Foliage
Faerie Mystery Capsule - Sparkling Faerie Wand
Holiday Mystery Capsule - Gingerbread Wings
Winged Mystery Capsule - Skeletal Wings
Faerie Doll Mystery Capsule - Floating Battle Faerie Doll
Mystery Capsule of Evil - Surprisingly Malevolent Messenger Bag
Spring Mystery Capsule - Flower Wings
Fiery Mystery Capsule - Flickering Flame String Lights
Summer Mystery Capsule - Ice Cream String Light

And for future reference, each of these items list what they give/where they come from in their item notes in the database.