1. Broadcast the competition live via twitch/youtube
2. Get an editor and broadcast the competition live via twitch/youtube
3. Get commentators and editors and broadcast the competition live via twitch/youtube
4. Make the prize pool exquisite (instead of giving out money) like G1 Gaming Graphics Cards/Motherboards, Force Headsets, Aivia mice etc.
5. And, as @
Sybaris Caesar said, pull out some SOC motherboards, put a 6500K in it, gather some Overclockers (they will arrange their own cooling), and tell them to go haywire on it. Winner gets the system.