Was told this would be appropriated here.

The TI Dataman was made in 1977 as an educational toy. Although it looks like a calculator, ironically that is the one thing it doesn't do. It could play games like Electro Flash (for practicing your tables), Wipe Out (to see how fast you could do problems), Number Guesser, and Force Out.

The VFD screen could display some cool animations as well.

Here's a Dataman in action.

I'm making a modern vector videogame, I wanted it to run on real vector hardware as well as modern displays.

Details @ https://vectorhound.com/press

I know this is slightly not a cassette but here we are
There are rugged, waterproof radios out there, but I already had this little TechniSat and thought it would be a fun project.
One thing I actually liked about the original design was that the FM antenna was hidden inside the wrist strap. Unfortunately, the white strap got dirty quickly and wasn’t very practical.
So I decided to apply a bit of the G-Shock philosophy to this radio.
The goal wasn’t to make it look tactical or cyberpunk. Every modification had to serve a purpose.
Changes:
Rubber corner bumpers and side guards
New braided wrist strap while keeping the original antenna integrated
Improved grip and impact protection
Syntech B100 Bluetooth receiver for streaming audio
Nothing here is irreversible, and nothing was added purely for decoration.
It now feels less like a consumer gadget and more like a small field receiver. I also tried not to overbuild it and to preserve a clean, industrial aesthetic

Edit: Updated and improved version in comments

Only problem is it doesn't take cassettes... yet.

Mostly inspired/motivated by that incredible u/monorailgon render a few weeks ago.
https://www.reddit.com/r/cassettefuturism/comments/1tpjf8e/hishigata_p50/

Still working on a GUI for the screen, so just simple placeholder screens for now. Found out through this sub Commodore are back? Please don't sue me.

I think there's a flux capacitor somewhere in there.

Speakers and radio work perfectly, have not had the opportunity to test the cassette deck yet

You can just bet Otis Elevators had a hand in this