How Do I Finish and Get Shine Without a Tumbler?

by Jen.
(Washington DC )

I am just starting metal stamping and mainly work with aluminum and copper. Is there a way to get a high shine on my pieces without a tumbler?

And what is the best way to get minor scratches out of the metal prior to polishing?

Any luck with synthetic steel wool? I have a baby in the house so I need chemical free, safe options.

Thanks.

Jen