Since I see the physical effect tied to emotional reactions as being important to the magickal action in question, it makes sense seek out various methods of causing powerful emotional and physiological reactions to harness for magickal purposes. It is my opinion that any form of physiological arousal is a tool to be used for any spell, especially if one has difficulty with creating any sort of feeling within themselves in the first place. While it is better to tailor the reaction to the particular spell used (feelings of hatred for a spell of destruction, sexual arousal for a spell of lust, feelings of pity and empathy for a spell of compassion), any emotion and the felt effects of that emotion in the body will do. The mind has a way of tying things together. If all you can feel is hatred, but all you think about is compassion, you can fuse the sensations of hatred to the intent of compassion. The feelings you arouse in a spell are the ammunition that you fire into the universe to accomplish your will.
There are many tools to use to create these physiological sensation. Orgasm, drugs, music, meditation, an incense are a few of the more common ones. A possible tool I don't think I have ever seen mentioned in discussions of spellwork is movies. Laughter, despair, disgust, sexual arousal, and violent excitement are just a few off the many emotions that can be triggered while watching a movie. These could then be channelled as the magician sees fit for his particular purposes.
A movie like August Underground: Mordum for example might cause intense feelings of disgust or fear. The magician could time the most offensive parts of the movie the casting of the spell, so that at the moment when they feel the most physiological arousal. Of course disgust and fear are not the only emotions that could be used, though they are those which I feel most often, so I find them useful for magickal work.