Get a gigantic cooler and make hunch punch.
Have it preferably outside so a bunch of drunks don't fuck you house up
if you can get a local band or DJ to come that would be cool too
if not you could always rent a massive system to rock your yard out
also food but not too much this aint no fuckin charity
This is basically a good 'go-to' idea. I'd say possibly instead of the cooler get a keg or two and/or a daiquiri machine for the girls. I had a keg party a few weeks ago with a huge system and some MAD FREESTYLE SESSIONS YO and it was a heap of fun.
Another idea that a mate of mine did that went down well was get the first name of your party (for example, Tom) and use the first letter for a theme. So he had a 'T' party, where everyone had to dress up/come as something/someone starting with the letter T.
I dunno I don't have many super original ideas, just don't do something lame like a PIMPS N HOES party.