Cogburn Arsenal makes a Mini-14 Stripper Clip Spoon, Gen II for loading Ruger Mini-14 mags using both USGI and Thermold clips. They sell Thermold and G.I. clips, $8.50/20 clips. The Thermold clips last a long time since they don't have little brass tabs to break off. I plan on buying a bunch and filling an ammo can with ammo in clips. They have an AR-15/Mini-14 Stripper Clip Mag Loader that works with Thermold and G.I. clips. That's smaller easier to pack than a Thermold loader that does the same thing plus loads loose rounds. They make stripper clips for lots of other guns, including Remington Model 8 and Model 81 rifles. And they have 3D-printed metal Clip Guides that attach to Mini-14, Mini-30, and Ranch rifles, so you can top off the mag while it's in the gun. That would work even if you lived in a communist state where detachable mags were verboten.
But one of my favorite things is the Packing Tape Dispenser AR Grip Adapter.
A fun adapter for converting a regular tape dispenser into an envy soaked, tacticool packaging weapon. They supply the parts needed to add M16/AR15 grips to your Duck brand Tape dispenser. This is only an adapter part, A2 grip and Duck brand packing tape dispenser sold separately. Saves those old A2 grips from a sure trip to the scrap bin. Because everyone replaces them anyway, right? I know I did. I have a Pachmayr Vindicator grip with finger grooves I'm not using, too. That would make for one very heavy tape dispenser, since it has so much steel in it.
They have lots of other stuff too, like Mini-14 paddle mag releases, HK-style Mini-14 sights, and various pin-on and clamp-on bayonet lugs. I need to figure out the barrel diameter of my 10/22 so I can get one for it. I already have a flash suppressor for the ring to fit over, so why not?
https://cogburnarsenal.com/