Tier rewards can consist of titles unlocked crates and event traps as house items. Traps in houses do no damage.
Bronze- 1 scholar elixir, 1 ballista for your house which can be interactable, and 1 unlocked lock.
Silver- 1 scholar elixirs, 1 flame trap interactable it spawns an endlessly flowing flame when interacted with in a house, title "Awareness"
Gold- 1 elixir, 3 unlocked chests 1 open each, 5 greedy monarch chests and the title "Snared"
Platinum- 2 elixirs, 10 tradeable elite awakening gems, minotaur as a house boss display monster holder, and the title "Trapsmith" in brown.
I am sure someone can come up with better titles but tier rewards would be nice to have and these ones don't require any vanities to be made.