I thought about that, but there wouldn't be any traction IMO. When I pull, I pull in beach sand at my neighborhood playground.
Instead, start looking around at local scrap yards for something usable. Or some welder that could hook you up. I tried contacting quite a few welders in my area and all of them were over the $150 mark for the cost of materials plus time. Bullshit. I have a contact in my area named Sandblaster who said he'd let me take one off his hands for $80.. That's the absolute best I could find.. But, that's not saying you could find the materials yourself at a scrap heap and just have them work on it.
For now I just have a truck tire, rope, and a paint can filled with some of that beach sand to put inside it.. No problems here.