Some good stuff in the shop
designmuseumshop.com/products/uk-rave-flyers
(Nicki Minaj, Mon 30 Nov 2020, 16:55, archived)

nice
I've got this: www.amazon.co.uk/Rave-Art-Flyers-invitations-membership/dp/1787394980/

Some of the very earliest ones are boring as shit though
( Queef Smegwin U r a 🔔🔚, Mon 30 Nov 2020, 16:57, archived)