Someone PM'd me asking about my DIY timer for running a vibrating tumbler. When I described the process of making mine they quickly lost interest.
Yesterday I stumbled on a pre-made version called the
"Time Out" case cleaner timer so I thought I'd mention it in case anyone was still looking for such a thing.
I have no affiliation with the company (other than recently buying a "brass wizard") just thought it was a potentially useful gadget.
Ultimately I don't think my DIY solution was much cheaper than this thing.