Method Help

[BBY]

So after looking through every store available I was unable to find a cornhole bag and ordering them online isn't an option for me(I live at home and my mom opens all packages). So could I just make my own by putting some sand in a sock and closing it up? In theory it should work right?? Like idk what a cornhole bag feels like but I imagine it's similar to that.
If anyone can confirm if that's fine I'd really appreciate it!!