In super Mario 64 a snowman got my cap how do you get it back?

Theie are 3 ways of obtaining you hat back. 1) Run around the snowman as fast as you can. This will make it dizzy and it should fall over and die. 2) If you continue onwards in the level, there's an open snowfield with enemies, at the end of the field is a small box which you can hit the snowman with. 3) There is also a toad somewhere in the castle which if you talk to, he will have your hat.