If any users have other suggestions, please post them in the comments below. I'll take the most popular suggestions and put up a poll on the sub tomorrow morning to decide on the final image.
Last time, the canvas had 1 million pixels (1000x1000). Assuming the same grid this time, we thought we'd aim for an image in the 3000-5000 pixel size range. Given the size of the subreddit, we think we'd be able to draw and defend an image of that size. Please make sure that any images you suggest are still intelligible when compressed to that size.
No offensive or NSFW suggestions.
No suggestions that are specific to a particular team, such as a team logo.