When the user signs up in our app, we would like to ask get the gender of the user. For the purpose of the app, it's not important that we have the 'real' gender of the user, but we would like to still classify them.
We're thinking of using a visual selection like icons and images instead of text. It's simple for male and female, but for other, it becomes tricky. Showing a half male and half female icon might not be appropriate.
And showing for example, a robot might be offensive. Do you have any ideas on what visual (image) can safely be used for "other"? Also, it doesn't have to be just one "other", there can be multiple "other".
For example, we can have 5 selections: male, female, robot, animal, tree. But our goal is to not offend, while staying fun.