Fakes

[Leviset]

A thought just crossed my mind (quite rare for my Pure Math addled Brain - but I’m convinced that continuing to program and collect vintage programmable calculators keeps my brain in top shape, but my wife (of 51 years) just sees clutter).
Have there or are there Far East clones/copies of programmable calculators?
I could see that it might be commercially (and illegal) viable to fake some modern calculators like HP Prime, TI-Nspire CX CAS, Casio Prizm & Classpads (have they?).
Also back in the 80s were there attempts to clone say the HP-41CX or TI-59s?
I’d like to get my hands on one just to tear it down and compare it to my real ones.
Dennis