Mayor Mare has a plan to boost economic growth and create jobs in Ponyville by exploiting the success of 'Friendship is Magic', and running tours to let the human fans meet the ponies behind their favourite characters. But will the real Elements of Harmony all play along?

This story is a sequel to The Art of Rainbow Engineering

Following Twilight Sparkle's explanation of the scientific method, Diamond Tiara asserts that the sonic rainboom is a scientific phenomenon. Scootaloo insists it is magic. The Ponyville schoolhouse is the scene for an unprecedented intellectual dispute.

It's a sonic rainboom. How not scientific could it possibly not be?

A side story to The Art of Rainbow Engineering - you don't need to read that first.

Three tales to append to the Hearth’s Warming Eve story telling of the further adventures of Commander Hurricane, Chancellor Puddinghead, and Princess Platinum; concerning politics, art, sport, and sticky puddings. The early days of Equestria involved some quarrelling and compromises as the three pony tribes learnt to work together and accept each others’ differences. But mostly, it was about having fun together.

Can you make a rainbow just with sunlight and water? No magic required? With the help of the pegasus weather team, Rainbow Dash and Twilight Sparkle investigate.