It’s scary enough to think about getting separated from your child at a crowded theme park or beach—and terrifying to consider that your young child might not be able to offer your contact information to a police officer or helpful stranger.

Safety Tats offers a solution: Not so much a tattoo as a super-strong band-aid-style sticker on which you can write on before applying to your child's arm or leg. A mom of three came up with the idea while shepherding her own kids through an amusement park, writing (and then re-writing, when it smeared) her phone number on their arms in case anyone should get lost.

The brightly colored stickers  feature a classic line—for instance, “If Lost Please Call” with space for your cell phone number. They are decorated with gender-friendly icons such as flowers or lizards, and there's a skull-and-crossbones sticker for aesthetically-finicky tweens. Another series specifies allergies or special needs.

We tried out Safety Tats on our 4-year-old, who wears her band-aids with the same pride that bikers show off real tattoos. She particularly liked the "If Lost" flowers. And, for better or worse, that “tat” stuck on her skin well. It may have elicited a brief ow-ee moment when it came off, but we were glad that it didn’t shrivel away on its own—you probably wouldn’t need to apply a new one every day of a trip. We even soaked a written-on sticker in the sink for a few hours, and its ink never smeared.

Best for: ages 1 to 9

Retail price: A box of 30 tats costs $19.85. The stickers are available at some retail stores and in many AAA branches—and you can also buy them online.

Exclusive offer: Safety Tat is offering WeJustGotBack.com readers a 15% discount on any online order of $15 or more. Use promo code WeJustGotBack (which is case sensitive and must be typed exactly as seen). The code will expire on July 31.