Stylus Replacement For Realistic PortiPlay 13-1163

Hello!
I have recently re-discovered my Realistic PortiPlay 13-1163 ladybug phonograph, after being put away for months, if not years. It was working OK, but then it all went downhill from the point when I dropped the stylus on the textured platter mat to see what would happen. I am revisiting the project, but I cannot find an affordable stylus that would fit in this machine. Looking for somewhere that I could find one, please.
Thanks!