Chris and Kim Knight love to create costumes and props for themselves. For example, here are their Bender and Leela costumes. How they made Leela's mono-eye is interesting:
The eyeball was originally a tap light. When that didn't allow much visibility, we switched to the plastic blister pack from the same tap light cut a little bit smaller than the first version and painted with a very light dusting of white on the inside. Even though visibility was much better in early testing, she was blind once again when it was actually glued to her face.
Link to their homepage
With only one eye, it's probably harder to judge portion size.
haters of these costumes can bite my glorious golden ass!!
i actually think my mates bender costume looked better than that one pictured, but hey that one's still awesome.
For a one or two eyed chick, Kim is not.