Practical Joke?

Harry Morgan played Col. Sherman Potter on M*A*S*H*. Here he is shown with Daniel Radcliffe who played Harry Potter. That's neither practical nor a joke.

Today, a colleague mentioned playing a practical joke which would result in funny-coloured circles around another colleague's eyes. It reminded me of an episode of M*A*S*H* when Radar and Colonel Potter are searching for a new location during a bug-out. Some inky substance had been applied to Colonel Potter's binoculars and after he looks through them, this is the result:

Radar laughs so hard he falls out of his seat.