Designing My Own Customized T-Shirt

I've given a task in the past week to design my own t-shirt. This will eventually be my first time designing one as I have never even come near into trying to make one. The main purpose of this task is to encourage or to persuade us to eat vegetables and fruits through t-shirts. Yes, vegetables and fruits. Overwhelming. I've been to various types of clothing stores, especially t-shirts with many interesting themes and messages on them. But I've never come across one with vegetables and fruits on them. This is my opportunity to design one. At least, to show and share with my colleagues and lecture in the following week.