Not exactly a new sale/offer but looks like Market is cleaning house 08-19-2016.
Items now marked as Limited Edition:
Nature
Cupid Cow - 35Gems
Cupid Sheep - 65Gems
Glimmeregg Chick - 40Gems
Bunny Puppy - 200Gems
(Oddly enough, Glimmeregg bunny not flagged though)
Fireworks Skunkupine - 280Gems
Fireworks Manticore - 400Gems
Black Frenchie - 150Gems
Siamese Kitten - 150Gems
(Don't remember if these were there before or not, but they're marked now lol)
Deco
Valentine Teddy - 10Gems
(Rose Vase not flagged)
(Bunny Basket not flagged)
(Bunny Burrow not flagged)
Liberty Planter - 100Gems
Liberty Torch - 120Gems