Well turns out there's an easy solution: you buy heavy water and freeze it.

Heavy water is the same as regular water except it uses different isotopes of Hydrogen making it up to 10% heavier than regular water.

You shouldn't actually drink it because who knows what radiocative water will do to you

but now you finally have an advantage in all those ice fights you have with your friends. Ice fights? What the crap am I talking about?

what's up with the ice fights?

Iunno.

so did you try it yet?

I dunno where to buy heavy water.

buy it on jupiter

Why?

Jupiter doesnt have water i think.

there's a storm ongoing on jupiter

so there should be a bit of water