Here is a forum that contains many different mod patches for Super Mario 64. Some are pretty generic, but some are pretty good too, just have to sift through it all.

http://jul.rustedmagick.com/board/thread.php?id=436


Here are some more Hacking docs for Nintendo 64, specifically for Mario 64 and Toad's Tool.

http://jul.rustedmagick.com/board/thread.php?id=596



I would also like to ask if anybody knows of any more Super Mario 64 mods/patches out there that are any good? I see some very very nice work done with toads tool on youtube videos through google, but i never find any actual patches or anything for them, just people saying how "cool" they are. ANY links would be appreciated.