DIY Decoden Phone Case - linked as much# as I could in LTK. For phone cases: look for polycarbonate or acrylic as a top material. You can use a case with TPU (or thermoplastic polyurethane), but only when paired with polycarbonate or acrylic. Do not use a silicone case! The sealant will stick initially, but then peel off a few days later - speaking from experience here, trust 🙃 LTKFindsUnder50 LTKHome LTKVideo