Thats a tough question. DB's do not work very well, because of their shape they are pretty awkward. I have seen people do it, it is just not nearly as smooth.
Let me think.
You could definitely use a 10lb plate for starters. I guess holding a DB the tall way might work. That will be a little awkward as well though.
You could take a short, round, rope, and loop it around a DB so that it is parallel to the floor (this will keep it from hitting the ground) and pass it back and forth that way. That will probably work the best. If you loop the rope through itself so it is snug on the DB it should keep the DB from sliding around.
These are just initial thoughts. I may come up with more later on.
Let me think.
You could definitely use a 10lb plate for starters. I guess holding a DB the tall way might work. That will be a little awkward as well though.
You could take a short, round, rope, and loop it around a DB so that it is parallel to the floor (this will keep it from hitting the ground) and pass it back and forth that way. That will probably work the best. If you loop the rope through itself so it is snug on the DB it should keep the DB from sliding around.
These are just initial thoughts. I may come up with more later on.