C# Preserving GameObjects' Previous Meshes

You could try simply copying/saving the Mesh component from the gameobject, but that most likely won't be helpful if the vertices on the mesh are changing (your copy of the mesh will also change). The simplest way I can think of is to copy the vertices and triangles to another variable, and store that instead. If you want to, you can also try saving the vertex colours, but that probably won't be necessary