Toys have long served as a staple of the holiday gift-giving tradition for children. But you might want to avoid putting certain toys on your shopping list this year.

According to the U.S. Public Interest Research Group's annual "Trouble in Toyland" report, 15 of 40 inspected toys could be potential safety hazards for children.

Slime products are prominently featured in the report, making up six of the 15 identified dangerous toys. The report states the products have "dangerously high boron content" that can be hazardous if ingested.

The six products are: Kangaroos Original Super Cool Slime, Kidsco Glow in The Dark Slime, Toysmith Jupiter Juice Slime, iBaseToy Fluffy Slime, Haniex Soft Magic Crystal Slime and Meland Fluffy Slime.

Kid Playing Hand Made Toy Isolated On Withe Background
Parents can drop their kids off at KidsPark in Phoenix or Peoria for hours of slime-making fun Sept. 14-16.
Getty Images

Another concern flagged by the report is toys that could share private information.

For example, Dash, Dash, a robot toy sold by Wonder Workshop, connects to Bluetooth, has a microphone and allows kids to interact with it. But the toy also shares information with third parties, according to the report's citing of a separate finding from the Mozilla Foundation

The report found the Amazon Fire HD Kids Edition has similar issues: "The device can share a child’s private information with third parties for advertising purposes, and the tablet does not delete the data it stores on you."

The report also noted products with small parts – such as Hatchimals and L.O.L. Surprise Toys – and balloons as choking hazards that did not have proper labelling. With the latter, PIRG found that 87 percent of the latex balloons the group surveyed on Amazon’s website lacked the legally required warning that a toy could be a choking hazard for children under the age of 8.

Producing its "Trouble in Toyland" report for more than 30 years, the group says its inspections have "led to more than 150 toy recalls and other regulatory actions."

Follow USA TODAY intern Ben Tobin on Twitter: @TobinBen