Did exactly the same thing with my A-10, a little over zealous with the sanding.
So there I was, regretting my stupidity and scratching my head to find a solution, when the solution dropped right into my lap. Literally!!!!!!!!!!!
My own hair!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
So I grabbed some, gently, cause it hurts, gave it a wash in some acetone to remove any oil etc, wrapped it around and secured with some super glue, capillary action drew it around the model, and voila!!!!!!!!!
This was a 1/48th scale Tamiya kit, and after painting it looked perfect.
For larger models one would need coarser hair, so distract the family dog with a bone, and, well, you get the idea!