heart-shaped charm 3d model

Create one flat, asymmetrical hand-drawn heart-shaped charm inspired by the reference image. The heart must have a playful elongated shape, softly rounded edges, a completely flat back, and a solid printable body. Add a thick raised border around the heart and a recessed flat center. Place the raised handwritten text “+ Fe” across the lower center. Include one reinforced circular hole near the upper-left corner for attaching a keychain ring. Dimensions: 45 mm tall, 36 mm wide, and 3.2 mm total thickness. The border and text should be raised 0.8 mm above the center. The hanging hole must be 3.5 mm in diameter, with at least 2.5 mm of solid material surrounding it. Make all elements connected as one watertight manifold object. Designed for FDM 3D printing with a 0.4 mm nozzle, no supports, no thin or floating pieces, no texture, no background, no keychain ring, and no additional decorations.