I’ve used some Scale75 paints and they are very nice, but hard to get in the US; at least where I’m at.

As for agitators, I use the ones from Monument/Creature Caster.  If you decide to purchase and you aren’t in the US, be sure to change the storefront to your local to get the best shipping price.

Their paints are also really good with high pigment, similar to Scale75 but a little less expensive I think.

Scale75 paints are good quality but need some serious shaking. Really alot. They tend to seperate during storage.

I first used “stainless steel” ball bearings, but they rusted quickly in all acrylic paint brands I own except reaper. Horrible lumpy brown stains in all the pots…

Instead I have used 6mm and 8mm haematite beads these last few years. They are heavier than glass and do not rust or corrode. and can be gotten cheaply in bulk off ebay or crafts stores. For scale 75 I would suggest the 8mm as you will need someting with a bit of weight to stir things up. Also you will need to pierce the funnels on the scale75 dropper bottles, I drill them out with a 1mm bit and later use a paperclip to keep them open.

I’m playing with their green colour set. Sure they need some jiggling (I used a nail varnish jiggler rather then agitators) but they’re lovely shades.

For agitators I’ve used the following:

Stainless/brass bb gun ammo

Pros easy to get hold of, cheap

Cons can react with paint (randomly, think it’s down to defects in individual bbs) , i have some grime paints now, great for terrain, vehicle interiors useless for minis, my “stainless” bbs were in fact coated

Killer con – can clog nozzle of dripper bottle, and you squeeze and pop goes the nozzle with 17+ml of paint flooding your pallet

5-8mm Glass beads 

Pros – very cheap I bought 200 for 99p a year or 2 ago on amazon

– inert doesn’t react with paint

Cons – a bugger to retrieve from bottle

– can need several in thick or high pigment paint to mix properly

Killer con – can clog nozzle of dripper bottle, and you squeeze and pop goes the nozzle with 17+ml of paint flooding your pallet

Marine grade stainless M5 nut

Pros – properly stainless steel (buy from a good ebay chandler)

– heavy, just need one in any paint to mix it properly

– Doesn’t clog dropper bottles

– easy to retrieve with a magnet or tweasers

Cons – most expensive option about 2p a nut when i bought a 100…

So these days all new paints get nuts, the rest of my paints have glass beads in them, and the ones with bbs have been replaced.