Can anyone recommend a beanbag that would be practical to pack and easy to use?
I was 18 months over there travelling and really the sand idea is good only if you have your own vehicle to leave it in, otherwise you are carrying around a big heavy thing all the time, to and fro from hire vehicle to accommodation, or having to empty it and fill it. Hassle Also, if you're swinging the camera around in a confined space, esp with other people in a game drive situation (most of whom have no real interest in photography) then it's inconvenient because of the weight.
I spent a lot of time in Namibia which has plenty of sand but it's just not worth the trouble in my experience, even drivinmg just the two of us in our own vehicle. I could have easily used it but the beads and Pod worked perfectly so why throw out a convenient solution for something that is more like harder work? Very easy to screw a Pod into the tripod mound and even walk around with it attached.
Putting sand in a ziploc plastic bag is not based on reality. Wouldn't last the pace for most people.