If you just need a today, try Wings 3D Portable or BlocksCAD (web) instead of risking a 14-year-old unofficial hack.
Free 3D Modeling Software | 3D Design Online - SketchUp - Trimble Google Sketchup 8 Portable Free Download
: Trimble no longer supports or provides official download links for SketchUp 8. Official downloads are now only available for much newer versions, typically starting from 2022 or later. Commercial Use If you just need a today, try Wings
The portable version is extremely small (often under 100MB) and doesn't require a complex installation process. Legendary Ease of Use: Commercial Use The portable version is extremely small
Portable builds frequently crash when trying to access system-dependent plugins or rendering engines.
: The modern successor to the "Make" version. It is free for personal use and provides the core tools found in the classic desktop versions.