Polishing Tiny Pendants

[BH1]

Hi!

I have been making little initial pendants similar to the photo attached. At the moment I am hand cutting them then using a polishing motor to get them looking smooth and shiny. However I am wondering if there could be a easier and more effective way of getting the pendants polished up? For example if I cut out 50 tiny initial charms it takes me a long time to polish each one and since they are so tiny it can be very fiddly.

I was reading about magnetic tumbler polishing machines and similar and though would this work? I am still not fully understanding how those work though so maybe not. Or is there any other way I could polish multiple charms at a time with another method to save me polishing each tiny charm one by one?

Any advice would be appreciated.