Swapping Airspeed Indicators

You know what I’m going to do, just to play a prank on my nephew? I think I’m going to borrow a buddies scrap airspeed indicators and kind of quickly rig them into my own little plane for our flight this weekend. He’s never gone up with me before, and I know that he is really excited. But he’s also something of a speed demon on the streets, so I think I can rig it to look like my actual airspeed indicator is one from a small plane that doesn’t really get to very high speeds. I’ll make sure to have a camera ready when I tell him that!