Tumbler
Media for tumbler
Tool chest to store pinball parts

Here are some storage containers. Especially the flat boxes with 18-24 compartments
https://www.harborfreight.com/search?order=price-low&q=storage

Here’s a tool box that I use. I store tools in the top tray, and fuses, coils, sleeves, door locks, etc. in the four pull out containers. I bring it with me when I buy a game. Keep a new coin door lock in this toolbox so if you buy a game without a coin door lock or have to drill it, you can install a new one in two minutes and you don’t have to listen to the door flap open and close on the ride home.
https://www.harborfreight.com/toolbox-organizer-with-4-drawers-68238.html

Always remember to bring your 20% off coupon!

This forum might give you some ideas. https://pinside.com/pinball/forum/topic/tool-and-workshop-tips

The rubber ring rests against a metal arm that is sticking up out of the playfield. The arm is probably too tight against the rubber, causing the slingshot to fire several times instead of once. Try adjusting the arm away from the rubber ring slightly. See if that fixes the problem.

PBR also sells a Palnut Removal Tool (item# GTB-26181+)
http://www.pbresource.com/tools.html

The HF tumblers don't last long. Buy one off of Amazon and you'll be a lot happier. Buy pet store walnut media, like for lizards. You'll get three times as much material.

I bought this Frankfort model tumbler. I've only used it once so far. There's another popular brand name, but I can't remember the name.
https://www.amazon.com/gp/product/B001MYGLJC/ref=ppx_yo_dt_b_asin_title_o08_s01
here's a nice seperator (think colander):
https://www.amazon.com/gp/product/B004J4F09O/ref=ppx_yo_dt_b_asin_title_o08_s01
Here's the walnut media that I bought, not a pet store product, but cheap:
https://www.amazon.com/gp/product/B07BGBMXFS/ref=ppx_yo_dt_b_asin_title_o08_s00