Spectrum AIL435 grey portable keyboard (I couldn't get 8 keys to work, the 4 black and 4 white keys between my fingers in the picture). Rhythm buttons work. I'm unsure if tone buttons do. It's possible that I just didn't know how to work it. - $10
Casio Casiotone MT-205 black portable keyboard (All keys work. One black key is wobbly). Rhythm and tone buttons work. - $50
Will sell together or separately. No wall plug for either. Both work off 6 AA batteries. Not included. Will bring with me to prove they work if you like.