I used to have 2h, 15-person meetings which, naturally, achieved little. The solution (outside of just not participating) was to have a clip of Tibetan singing

I used to have 2h, 15-person meetings which, naturally, achieved little. The solution (outside of just not participating) was to have a clip of Tibetan singing bowls play in the background. Especially one sleepy co-worker's voice started sounding as if he was delivering profound truths while in the lotus position.