I'm from Czech Republic, born 1980. From elementary school, we all remember this mantra:
When ebonite rod is rubbed with fox fur, electrostatic charge is created. Electrostatic charge is created by rubbing ebonite rod with fox fur. Rubbing ebonite fur with fox fur creates electrostatic charge.
Etc. ad nauseam.
Is there anything special about the combination of ebonite and fox fur that makes it especially useful for teaching kids about electricity?
Does there even exist a clear distinction between things that do and things that don't create electrostatic charge by rubbing?
The irony: I can't remember ever hearing the word 'ebonite' in any other context than this particular strange example. (I never even knew what ebonite was until about 15 minutes ago when I googled it.)