I found some more glitches using the snowboard at Snowpeak's top.

Here's the movie! YouTube - Twilight Princess: Snowpeak Snowboard Glitches

A big warning, glitch numbers 2 and 5 will end your game in a nasty way, by making you yank the wires out of your Wii. Ya can't reset or power off if you do those glitches, so, um, I hereafter disclaim all liability for any bad things that happen by trying them, lol. Really you already know what happens though so yeah don't do them.

looks like in glitch 4, some huge invisable monster is just punching the hell out you lol. those are awesome man, great finds!