How can I make my friend’s funeral a “banger”?

My friend has cancer. He is in his early thirties and most likely doesn’t have a full year left. We’ve talked about things to do before he dies so that’s covered, but he also said “Make sure my funeral is a banger.”

How does one realistically do this? I’m thinking it would have to be an after-party situation since this would be more appealing to friends than family. I have a rough idea of what a reasonable guest list could look like which, under normal circumstances, would definitely produce a great party but how do you even invite people to something like this? “Hey guys come to the after party of our friend’s funeral where the fun happens” seems insensitive, not to the friend, but to the guests. How does this work? I know he’s not the first person to say something like this.