This past Valentine’s Day was a little less sweet without Sweethearts conversation hearts gracing store shelves, but there’s some good news on the horizon. According to CandyStore.com, Necco-brand candies are coming back—well, some of them, at least.

The future of classic candies like Sweethearts conversation hearts, Necco Wafers, Clark Bars, Mary Janes, and Sky Bars has been uncertain ever since the New England Confectionery Company went out of business last year. People sent online retailer CandyStore.com thousands of emails asking what would become of their favorite confections, so the website’s staff painstakingly “tracked down the fate of all the Necco candy brands,” according to a blog post.

Spangler Candy Company, which acquired a couple of the Necco brands, appears to be keeping its promise of bringing back Necco Wafers, Sweethearts, and Canada Mints. However, the new owner is still testing recipes, and the time frame for their return remains undetermined.

“We are committed to making sure these brands meet consumer expectations when they reenter the market," Spangler CEO Kirk Vashaw told the candy website. "Doing it right takes time."

Only one of the original Necco brands, Candy Buttons, is currently available for purchase under new ownership. There is also a good chance that several other candies—including Clark Bars, Sky Bars, Mighty Malts, Haviland Thin Mints, Slap Stix, and various flavored chews—will be returning in the future. The rights to many of these brands were bought by different companies, some of which are now experimenting with production methods. For instance, the CEO of the Boyer Candy Company, which now owns Clark Bars, said recent attempts to produce the candy have resulted in Clark Bars “coming out in the shape of hot dogs,” which is not ideal. (Though they reportedly “taste fantastic.”)

As for Mary Janes and Squirrel Nut Zippers: those candies remain in greater peril. The Mary Jane brand is still for sale, and there’s some confusion about who owns the Zippers trademark. The latter can still be bought from CandyStore.com, but sadly, Mary Janes have become nearly impossible to find. “Panic buyers of Mary Janes are really glad they did,” the website states. “Their secret stash is the best place to find them.”

For more details about the future of your favorite Necco candies, check out CandyStore.com’s blog post. In the meantime, you can still find some of the discontinued candies on Amazon and other online retailers, albeit for very high prices.