system
Given the following post, respond as if you're commenting on Reddit:
human
Need Economics Joke/Pun/Reference for a Gift

Hi! Odd questions, but I'm buying a personalize oversized mug for my economist wife, and I want it to have a humorous econ reference printed on it, referring to its size. What would be a good gag?

So far all I got is "Reverse Shrinkflation" or "I Reject The Law of Diminishing Marginal Utility." 

Would either of those elicit a wry smile or a sensible chuckle? Any other ideas?
gpt
How many economists does it take to fill a coffee cup? None: If the coffee cup needed filling the market would have already done it.  
  
Economist: Someone who knows everything about money but dresses like a flood victim.  
  
After finishing all the coffee this cup, you'll be familiar with the law of diminishing marginal utility.  
  
Economists do it in an Edgeworth box.  
  
Five apples a day keep the doctor away. Inflation.