Assuming that each level of my game is a different hole on the minigolf course, what are some creative themes for different levels? They should be colorful and feature shapes with a very distinct outline, so that they're easily recognizable in the low poly style. For example, it seems the "giant clown hole" is a ubiquitous concept in minigolf. That displays many of the properties I'm looking for, but I'd like something slightly less generic/cliche.