The “How about a nice cup of Liber-tea!!” coaster is perfect for those Helldivers about to risk their lives and defend Super Earth. With the center sunken into the design, it keeps your mug, cup, or tankard in place, so it's harder to knock it off the coaster. The outer edge is angled a little for appearance and ease of use. The resting area in the middle sits at around 4 inches in diameter, with the entire model reaching just under 5.5 inches. This allows for something as big as a 40 ounce bottle to sit comfortably.
Note: If condensation build-up is a risk, coating the inside with some form of water-proofing should minimize potential damage. Though with the PETG version I've printed, I haven't seen any noticeable changes despite full puddles being left to dry overnight.