Low-Poly 3D Aircraft Icons for Mapbox (glTF/GLB) — US-Based Only

We're looking for a US-based 3D modeler to build a small library of low-poly aircraft icons for use as map markers in a Mapbox GL JS application. These are stylized, generic aircraft type-category icons — not detailed replicas of any specific airframe or manufacturer. Think the level of abstraction you see in flight-tracking apps: a high-wing single, a low-wing single, a narrowbody twinjet, and so on. Clean, readable silhouettes that hold up at small on-screen sizes. All designs are generic; we are not asking you to model any real-world proprietary aircraft or work from manufacturer drawings. SCOPE Round 1: one aircraft model, low-poly, Mapbox-ready. Paid, and treated as a proof of concept. If it goes well: approximately 9 additional models covering other generic type categories, scoped separately under the same terms. Please tell us whether your per-model price improves across a batch of ~10. TECHNICAL REQUIREMENTS - Format: glTF 2.0, delivered as a single self-contained .glb - Materials: standard PBR metallic-roughness only. No unsupported texture extensions (no WebP textures). Keep material count low. - Named materials: assign distinct, sensibly named materials to major surfaces — at minimum a separate "fuselage" material from wings, tail, and glass. We recolor and re-skin these at runtime, so this matters. - Node hierarchy: preserve distinct nodes and materials on export. Do not merge everything into a single mesh. If you optimize with gltfpack or similar, use flags that keep nodes, materials, and extras rather than the default aggressive merge. - Animation: none needed. Static pose only. - Complexity: target well under 15,000 vertices. These are icon-scale assets, not hero models. - Textures: lowest resolution that meets the bar. Vertex colors or simple flat materials instead of textures wherever possible. Optimize for fast load in a web map. Technical constraints follow Mapbox's 3D model guide, worth a skim before you bid: https://docs.mapbox.com/style-spec/guides/using-3d-models/ RIGHTS AND TERMS - Work-for-hire with full assignment. All work product — final .glb plus editable source files (e.g. .blend) — is assigned to us on payment, worldwide and in perpetuity. - Moral rights waived to the extent permitted by applicable law. - No third-party assets. No stock models, marketplace assets, kitbash libraries, or anything royalty-bearing, attribution-required, or otherwise encumbered. You warrant the work is original and yours to assign. - AI-generated content: please disclose upfront if any part of your workflow uses generative AI to produce geometry or textures. Not an automatic disqualifier, but we need to know. - No portfolio use without written permission. Deliverables may not be displayed, resold, or redistributed. - NDA required before we share project references or additional context. - US-based contractors only. WHAT TO INCLUDE IN YOUR PROPOSAL 1. Portfolio examples of low-poly vehicle, aircraft, or icon-style models. glTF/GLB samples strongly preferred. 2. Confirmation you are US-based and can sign a work-for-hire agreement and NDA. 3. Typical turnaround for one icon-scale model. 4. Confirmation you can deliver both source files and an optimized, node- and material-preserving .glb. 5. Fixed price per model, and batch pricing for approximately 10 models.