If you do, then come celebrate Ridiculous Day! (If you don't, consider the following: your rent, spitting cobras, the movie Masters of the Universe, aphasia, me.)
Wearing something ridiculous is a good start. You can bring something ridiculous. Or perform something ridiculous. You get the idea. For those of you who don't feel like dressing up, note that not dressing up on this special day is itself a ridiculous notion, and hence acceptable. (Though less fun). Not coming is not ridiculous, but merely stupid, and everyone knows Stupid Day isn't until May 17th. So at least come! And please, invite anyone who would enjoy this kind of party. The more, the ridiculouser.
See you there!