Robin Liebal's children have graduated from toys to video games. But when the Christiansburg mother heard about recent toy recalls, she wondered what she’d do if she still had small children in the home.

Short of checking the list of toys that were recalled for lead content, how do moms insure their kids' toys are safe?

Liebal, who co-owns an environmental consulting business, offered to use her company’s $25,000 lead-analyzer machine to test the toys at Greenvale School recently. The test showed that 15 percent contained lead — enough to fill several garbage bags.