Like the original: TopPerfekt Bands Staff Pick A pretty decent replica of the original band that the kids' tracker comes with, these soft silicone waterproof sport straps come in 10 different colors, so chances are you'll be able to find the child's favorite. Parents with wee ones who love to gnaw on things will also appreciate that they're made of 100% BPA-free food-grade TPE. Some kids might also find the silicone buckle more comfortable versus the original plastic.$7 at Amazon The full rainbow: RuenTech Silicone Replacement Bands – 5-pack Kids love to show off their personality, and why limit them to just one replacement band when they could have five? This set of silicone water-resistant bands includes five bright colors (there's another option with less flashy hues if preferred) that kids can swap out to match their outfit, mood, or even activity. Strap on the bright yellow one for a weekend fam-jam (a great way for parents to spot their kids from afar, too!), then switch to softer purple during the week.$12 at Amazon