Steel weight for dry hopping

[Moe]

Hello all, I was hoping for some insight on this.

When dry hopping a brew the bag tends to float on the surface. I was wondering if a large ball bearing would allow the bag to stay immersed (increasing contact with the beer) but have no idea what kind of steel would be appropriate and safe.

Any ideas?
Cheers

I just chuck a spoon in the hop bag.
I sanitise it first

 

[marshbrewer]

Spoons for me....when I bagged hops. I reverted to just chucking them in.

Same here. Chuck them in loose.

Although, I don't actually dry hop any more, it's all hop stands for me.