Microsoft Paint 3D on Windows devices provides a handy tool for creating, remodelling, manipulating and sharing 2D and 3D images. If you find your own personal Windows device does not already have it installed you can follow this link to get Paint 3D (available on the Windows 10 Creators Update).
Tinkercad is a free, easy-to-use web app that equips the next generation of designers and engineers with the foundational skills for innovation: 3D design, electronics, and coding!