I have no idea what to do. Really, not even draft. I think theme must be something in Ludum Dare style to actually have "larde interpretation"

I agree, the theme is just too... Bland? There isn't too much room for intrepretation.

You are allowed to have a large interpretation of an egg cup too. What do you feel when you hear "egg cup"? What can you do if all you have is an egg cup? What if it is the only object that makes you remember about a past friendship? What if egg cups are conspiring to kill all eggs? What if egg cups can contain something else too?

I'm sure you'll find something to tell. Don't stress about it.