BOSTON — A light-up bow whose arrows are advertised as flying up to 145 feet and the “Catapencil” – a pencil with a miniature slingshot-style launcher on its end – are on an annual list of unsafe toys released Wednesday by a Massachusetts-based consumer watchdog group.

World Against Toys Causing Harm, or W.A.T.C.H., issued the “10 Worst Toys” list to remind parents and consumers of the potential hazards in some toys as the holiday shopping season gets underway.

Organizers, who have been compiling the lists for over four decades, said the toys singled out this year are representative of some of the typical problems they come across and aren’t the only potentially dangerous products on the market.

“It’s not so much about the specific toys. It’s about the hazards,” James Swartz, the group’s director, said.

Many toys, he said, continue to have the same hazardous designs, including small, detachable parts that infants can choke on; strings that can cause strangulation; dangerous projectiles; and misleading or confusing warning labels and instructions.

“There’s no reason, after all these years, we should have toys like this,” Swartz said as the group displayed each of the 10 toys. “We shouldn’t be finding these things for manufacturers. They should be designing them appropriately in the first place.”

Dr. Penny Norman, who developed ScienceWiz’s “Bottle Rocket Party,” was surprised the company’s kit, which includes rocket tubes, stoppers and yellow “caution tape” but not other necessary or recommended items, such as a bicycle pump or safety goggles, made the list.

She said the idea for the kits, which have been on the market since about 2005 and retail for around $15, came after doing homemade bottle rocket experiments with children at summer camps and after-school programs in Berkeley, California.

“It’s a time-honored event for children,” Norman said of launching the water or baking soda-and-vinegar-powered rockets. “But it isn’t about children being set loose to play with them on their own. It’s absolutely about adults running a bottle rocket party event safely.”

Robert Pasin, Radio Flyer’s “Chief Wagon Officer” and a grandson of the founder, maintained that the company’s four-wheeled “Ziggle” cycle, which W.A.T.C.H. criticized because it’s low to the ground, is safe. “For more than 97 years Radio Flyer has been producing high-quality products for children. We test and research all of our products,” he said.

The Toy Industry Association said American toy safety standards “remain the most protective in the world” and that the U.S. Consumer Product Safety Commission “consistently” ranks toys among the safest of 15 consumer product categories commonly found in the home.