Trying to make a DIY washing machine

This thing spins and is water proof.

It doesn't work very well for non socks, because the clothes don't spin because they get stuck on the wire.

I have a plastic bucket.

I want to make a hole in the bottom/side of the bucket so clothes won't get stuck on the wire. The wire cannot be detached from the spinny machine. So i have to cut a hole (in the bucket) big enough for a USB to fit through, then make the bucket water proof again. I'm not sure how to make it waterproof again.