I saw it on my way into town, somebody put out a casio WK-3000 piano out on the curb for free, with the stand power cord and even manual. The craziest part is its fully functional. Not a darn thing wrong with it 'cept some dust. Now I have to learn piano.
I’ve got one of these. It’s old but extremely useful to learn on. You can get the pedal for them on eBay. If it isn’t acting right find the buried system menu to reset it to factory defaults.
Amusingly it also takes a shitload of D batteries as alternate power.