nice nice remember a contest I once held via @airhawk-project, it was a blast made steemians explore different niche.
Each week we brought out new tag and steemians were expected to write around that tag.
The reward was upvote then from our community account and upvote were given out base on the audience voice, a certain percentage is set and we ensured all users got their share of the reward
The above just alight all that is needed to bring a contest to life.
Nice write-up