round keychain 3d model

Create a circular 3D keychain for 3D printing, based on the reference image. Overall diameter: 50 mm. Flat back. Integrated top tab with a 5 mm hole for a keyring. Maximum thickness: 6 mm. Use layered relief construction: - base layer: 4 mm - outline ring and contours: +1 mm - face, arms, legs and sandals: +2 mm - eyes and smile engraved: 0.5 mm depth Keep the model solid, manifold, printable, and structurally strong. Avoid thin parts and floating elements. Simplify tiny details for real-world manufacturing. Cute cartoon style, rounded edges, clean geometry. Export-ready for STL.