I think for kids, to be involved with creating a 'thing' knowing that 'thing', their 'thing' is 100's of km in the sky travelling at batshit crazy speeds and when it goes overhead they can track it, extract data from it and maybe do the same for other similar 'things', well for some I think they might still find that sort of thing pretty wicked.
Of course some of us have been 'fiddling' with satellites since the 60's, mostly LEO types
but currently the first geostationary for such use is alive.
Both transponders require ground transmitters on 2.4GHz and receivers on 10.4GHz so a fair bit of kit available to bolt on a dish and away you go. As the next step up from something like the Ambasat which hopefully just kicstarts (sic) the interest.