Need help for party idea

A friend is hosting an LSD party (more like a "celebration" of sorts) and asked his 5 closest people to come up with an activity that lasts no more than 30 minutes. One person is bringing sensory toys with different textures for us to experiment with, another is curating a psychedelic music playlist, and someone else suggested an activity where we say nice things about someone in the room. I've been thinking all week on something and I nothing good pops into my head. Does anyone have any ideas I could propose, please? :(