i was looking around in a local thrift shop today, and i found an apple m0100 mouse. it has the serial type connector, but pin #6 is broken off. for $1 i could not pass it up! i looked and sadly they did not have any old macs, but this is the same place i found my blueberry imac keyboard and some system 7 disks, so they get mac stuff once in a while. i don't have a computer for this mouse, but it was a find i am very happy about nonetheless.