With the 6gal plastic buckets, if it's sealed well, I could take it for a spin on the trailer. That's how I mixed a lot of paint..lol link up the trailer to the tractor and cruse around the property for a few. It shakes me up, so I knew it would work well for that - it does. Shaking it by hand would be one heck of a workout!

I have seen those glass jugs around at many antique shops and consignment places - that's where I'm going to check.