A Winnie-the-Pooh serial mouse, it's shaped like his head. https://digipres.club/system/media_attachments/files/112/062/004/803/434/428/original/59cac4fa1e8373bf.jpeg
I realized I need a serial mouse to reinstall NT4 onto this machine. but that shouldn't be a problem, right? I've got a whole drawer of old mice, I just need to grab the first serial mouse out of there.This was the first one I found.