speech bubble keychain 3d model

Create a 3D printable keychain. Base shape: rounded rectangle, 60 mm tall × 38 mm wide × 4.0 mm thick, corner radius 6 mm. Keyring hole: 6.5 mm diameter centered 6 mm from the top edge, with a 2.5 mm thick reinforced ring around the hole. Back face: perfectly flat, no text, no texture. Keep at least a 32 mm × 32 mm flat safe zone centered on the back for later NFC pocket subtraction. Front design: a simple speech bubble outline centered, with a single music note inside and two small sparkles (4-point stars) on the top-right. Text: bold sans-serif “POP” under the bubble, centered, large and readable. Relief: outlines and text raised 1.2 mm above the base; optional mid-level fill elements raised 0.6 mm. Minimum line width 1.2 mm, fillet all edges 0.6 mm. Keep geometry manifold and watertight. No overhangs beyond 45 degrees.