Perhaps the dorkiest costume of all time

I really can't (or won't) claim that too much thought went into it, beyond finding my old graduation cap and gown in a trunk and thinking that was too boring to wear alone and pondering how I could spruce it up a bit for a few minutes.  I'll let those of you who don't already know what I was guess in the comments.  Keep in mind I'm married to a science teacher...

Kate went as an astronaut, and even Banjo got a last minute cape to transform him into Underdog!

Did anyone else have a good costume?