About the only thing I havn't tried in radio in 40 odd years is EME - but that is entirely due to aerial (and cash) restrictions.
How does a dedicated QRP operator justify an EME array? - it just can't be done on a wet shoelace wrapped around a rusty 6 inch nail ... (though I am of the impression that a lot of satellite operators use this particular configuration on AO-7).
I digress - in the aforementioned 40 odd years, that which still gets my juices cooking is a 'fast' CW QSO on AO-7 with either RW3XL or UA9CS ... in Russian.
Now that's !!! international communication by amateur radio.
The kids ought to watch such a QSO in progress (translated live).
Every bit as interesting as the Jay Leno SMS v CW video on U-Tube and it would probably get a few enquiring minds in gear.
(Ah!, there was !!! a point to his waffling.....GM1SXX).
He's the other half of the "twisted pair" folks ... see -
73 John. la2qaa@amsat.org