Small Scale Military Headquarters

Hey Guys,
Is anyone making 1/18 scale sand bags ?
Made out or resin or 3d painted ?

Maybe you can get the 1984 GI Joe Mortar Defense unit? That had loose sandbags, and then you could cast copies from it?

I got some self drying clay to do the job thanks.
I actually looked at those but I needed so much of the bags and certain shapes I decided I had to make my own.