I recently downloaded this photoshop action (.atn file) from creativemarket.com which produces quick and easy retro-style 3D effects on text.
The results are raster, of course, but can be tweaked using a bitmap tracer to give vector output.
I like this a lot and on offer at $12.00, it's a good deal in my opinion and I have attached the first design I made using it.
Bob.
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