I think you should be able to make snowballs with your hands. Using a shovel would obviously be more effective (faster), but I still think it should be possible to use your hands. I mean in real life you can so why not?
Shovel would be faster yes. Using your hands may be slower, but atleast you'll be able to make snowballs without having to craft a shovel do so.
Its just something for convenience.
Its just something for convenience.
It's how it works in real life.
I guess both giving snowballs would be alright.