If you can determine the make and model of the phono cartridge (the module on the end of the arm that holds the needle), you might be able to find a replacement here:
Since we're talking about, essentially, a toy here, this thread won't be moved to A/V Sources.
Wouldn't this thing have a lowly ceramic phono cartridge, with a flipover-type stylus? And would you really want to risk the damage to any valued vinyl recordings by playing them on this thing (it probably tracks at five or six grams)?
Oddly, even though many of these had a flippable cartridge, many also offerred a 78RPM speed. I guess the kids found "Chipmunk speed" entertaining, as I doubt people were putting real 78RPM records on it..
However, on the one I still have in a closet, one side of the cartridge reads 45/78
Thanks for the needle doctor link, I found it there thanks to their tech support help . Although after just spending 90$'s for an upgrade to DVD Movie Factory, the needls going to have to wait for a bit ..