Yikes.

I recommend that you go and take them a box of store brand crackers.... something in a very tacky, cheap-looking bright yellow box with black writing that just says, "SALTINE CRACKERS" on the outside.

OR, better yet, take some jars of something weird, like pickled pigs feet... or anchovies... or a container of lard.

That way you can see how it all goes down, but not feel like you did anything but stick with the theme - tacky, tacky, tacky!