Automatic Snow Launcher Prank

First off, I haven't exactly tried it out but in theory it would work. Since this year we are getting snow, I decided to make a snow prank that automatically launches snow when your victim trips the wire.

You need:
- An old snow ball maker
- Knife or other cutting tool (to cut snowball maker)
- Thin string
- Stake
- Snow (duh)

Cut snowball maker like in the picture and stick it in the snow.

Stick stake in snow on opposite side of snowball maker. Tie string onto stake and the other end of the snowball maker like in picture. Put snowball in holder, then let that part hang down.

Place it in a place like a sledding hill but make sure it is angled a little down the hill because they are going fast.