Update! Because of too many holiday dinners, this is now a party at 10NIS entry but with no performance element.
Armon Hol are having their monthly open art/performance space tomorrow night from 21:00-3:00. 20NIS will get you in where you can see what other people have brought or do your own thing (but speak to them first if you want to do something). Gallery space, performance of all kinds, cheap alcohol and fun music at the end to dance to. Here’s the Facebook event page.