Here’s some other red Solo Cup-related 3D patterns for anyone who wants to play with their printer:
Cup cover for using Aerogarden pods to sprout seeds with Kratky method (wild!)
A cup holder for a cat to drink out of, just a good cup holder really
Not solo related but an adapter to use AC Infinity USB fans for tent ventilation in the duct holes
Solo trigger grip, good starting point for a mount design or just a good way to pick up your plants