I think that if you made a module that did voice commands for VLC media player that it could be quite popular. I've often wished I could just yell out "VLC pause" instead of having to walk over to the keyboard or mouse.
Script here: https://github.com/talonvoice/examples/blob/master/vlc.py
Alternate minimal script:
from talon.voice import Context, Key
ctx = Context('vlc', bundle='org.videolan.vlc')
ctx.keymap({'video (pause | play)': Key('space')})