We've had some impressive audio cassette players come through the Junk Store recently. Like this badass Tiffen Pro-Dissolve player that comes in its own hardcase with built-in speaker. Not bad.
Or how about this vintage Sankyo stereo cassette deck with all kinds of knobs and faders and shit. Niiice.
Ok, I just did about 5 seconds of research and I see the Tiffen is a slide-projector controller. However, I'm choosing to still regard it as a bad ass cassette deck.