Casiotone CT-360 Keyboard.
2W, 1x4" speaker.
Legit keyboard from the 1980s, kept under a sheet at my aunt's for about 20 years. Still works perfectly! 12 cheesy electronic '80s tones - Elec piano, Piano, Elec guitar, Vibraphone, Pipe organ, Jazz organ, Human voice, Violin, Flute, Trumpet, Synth-sound, Funky clavi - none of which, hilariously, sound anything like what they're named. Except maybe "pipe organ", that one is epic. Includes primitive drum machine that is honestly worth the price of admission alone. So much cheese...
Not really suitable for stage work as it only has a headphone output and is a little fragile, but perfect for your ironic '80s recording project. Sounds especially rad when put through some effects pedals.
5kg. Power cord included, or takes x6 D-size batteries. Deposit required, refunded upon return.