why is this piggy bank blue?:day 244

I am on day 244 of my 365 page challenge.

A Page of drawing, painting or artistic brainstorming a day for a year

this week has all been about the money and today's page is piggy bank

why is this piggy bank blue? maybe because he feels empty 

you can leave a comment down below or a drawing prompt made of two random words
and don't forget to check out my redbubble shop