Most old holiday decorations don't hold much value beyond the sentimental kind. But if you have a box of Christmas memorabilia collecting dust in your attic, there's one item worth searching for. According to Today, vintage ceramic Christmas trees shoot up in value around the holidays, and any you might have lying around the house could potentially be worth hundreds of dollars.

Ceramic Christmas trees were a common sight in the late 1960s and early '70s. They usually came in green or white, had colorful twinkle lights, and occasionally rotated and played music.

By the 1980s, the kitschy keepsakes had declined in popularity, but today they're experiencing a nostalgia-fueled comeback. Around this time of year, people are searching the internet for vintage ceramic trees that remind them of Christmases past. In some cases they're willing to spend a lot to get back this piece of their childhood: the knick-knacks can sell for between $75 and $875 on eBay.

Unlike other retro collectibles, such as comic books or vinyl albums, ceramic Christmas trees are only valuable for a brief window each year. If you list yours during late November or early December, when people are putting up their holiday decorations, it could earn you a couple hundred bucks—but wait until the new year and its worth plummets.

If you misplaced your ceramic Christmas trees years ago, there's still a way to cash in on the trend. Wait for the holiday season to pass then snatch up the items from other sellers at online auctions and flea markets for a low price. Then come Christmastime next year, they may earn you enough money to give a boost to your gift budget.