First introduced in 1912 by the National Biscuit Company (later Nabisco), the original chocolate-and-cream Oreo cookie has sold in the billions. For the first century of the cookie’s existence, only a handful of variations were introduced, along with ancillary offerings like Oreo O's cereal. But that changed in the new millennium, when Oreo began issuing dozens of limited-edition flavors annually, from watermelon to limeade to root beer float. The assortment has culminated with the recent news that a Game of Thrones edition is coming.

Those novelty flavors come and go from shelves and seem ready-made for social media. Here, we’ve collected some of the earlier Oreo experiments that Nabisco considered to be major shake-ups in the Oreo legacy. See if you can catch a glimpse of some Oreo snacks you may have missed. (Or tried and don’t miss it all.)

1. Oreo Big Stuf

One of the first radical reinventions of the Oreo was the Big Stuf, an enormous cookie released in the 1980s. Big Stuf was marketed in boxes of eight individually wrapped cookies, each measuring 3 inches in diameter and containing the caloric equivalent of 5.5 regular Oreos. These teeth-melting treats were promoted heavily, but disappeared after a few years.

2. Lemon Meringue Oreo

Mike Mozart, Flickr // CC BY 2.0

When Oreo began populating store shelves in 1912, it was joined by an alternative flavor—lemon meringue. The vanilla and lemon combination was discontinued by the 1920s.

3. Oreo Magic Dunkers

Oreo’s Magic Dunkers hit shelves in 2000 and offered a more colorful experience than your typical treat. When submerged in milk, the Oreo created swirls of blue coloring.

4. Oreo Dunkers

Amazon

Not to be confused with Magic Dunkers, Oreo Dunkers were oval-shaped cookies narrow enough to fit into smaller drinking glasses. While practical, people attuned to the familiar circular shape of the classic Oreo may have found them to be unsettling. The cookies were introduced in 2006 for a limited time. These days, you can buy a dunking kit with tongs to avoid getting your fingers in the milk.

5. Dulce de Leche Caramel Crème Oreo

Amazon

A pretty fancy name for a processed cookie, Dulce de Leche was available for a limited time in 2006. According to reviewers, the caramel taste came off as “intense” and “artificial.”

6. Double Delight Oreo

Martin Lewison, Flickr // CC BY-SA 2.0

Not to be confused with Double Stuf, which ups the ante on the narcotic cream filling, 2003’s Double Delight Oreos offered two layers of filling—chocolate and peanut butter—sandwiched between two chocolate wafers. Two additional versions, Mint ‘n Crème and Coffee ‘n Creme, were released later that year.

7. Uh-Oh! Oreo

Released in 2003, the Uh-Oh! Oreo sounds like you’re about to eat something that could cause gastrointestinal upset. The name was referring to a kind of Bizarro world Oreo, with chocolate filling and a pair of vanilla wafers. The cookies were relabeled Golden Uh-Oh! Chocolate Oreos in 2004 and were accompanied by Golden Oreos, a vanilla cookie with light filling and a buttery, softer wafer.

8. Oreo DQ Blizzard creme

Mike Mozart, Flickr // CC BY 2.0

In a harbinger of fanciful flavors to come, Oreo introduced a cookie in honor of Dairy Queen’s Oreo Blizzard ice cream treat in 2010. The filling was meant to taste like the mash-up of flavors in the chain’s frozen offering. You can see some blurry proof of its existence in the photo above.