So, hey, I have these two, and I am totally NOT going to use them. Ever again.
First up is a Yamaha PSS-130 squarewave synth keyboard. Little fella helped me make my first steps in music when I was like 8 years old. I have modified it with an RCA output, but that's as much as I found I could do with it (squarewave synths are not very bend-able, then again, I have little patience).
Second up is a Casio Rapman. This served to my sister as the Yamaha did to me. However she was always crap at anything but doing "Für Elise" on it It seems some mods are available for it, I haven't checked back since the time it said "it has no bends", since then I have seen modified Rapmans. the microphone input and voice modifier alone is a great tool. I remember running the output back to the input and then out again. This yielded massive distortion.
The catch: I am located in Argentina. Shipping could be a problem. Unless you can wait, and whenever someone travels to USA, I can send it with them.
The good: Offer me whatever you want for any of them. I just want them out of my parents' house. I accept trades for something cool. I also accept bottles of Inka Cola