well, we would have to think, what is the opposite of magic? I would say that might be something normal, but very normal. what defines normal physically? That might be a pair of trousers. Trousers are very normal. Now, what is the opposite of wand? That might a hole. So it all boils down to; the opposite of magic wand is a pair of trousers with a giant hole in them.
I dont think there is a opposite. Breaking up the words might help. The opposite of magic could be mundane, normal, natural, Wand doesn't really have a opposite but another word could be a baton, rod, stick. Hope this helped in some way :)
Harry Potter tried to turn me into a frog with his MAGIC WAND; I dismissed him flippantly with a COMMONPLACE GESTURE.
A television remote.