Sounds like an interesting way to promote paper models and provide some educational entertainment.
This site has some models of radio telescopes:
https://www.nao.ac.jp/en/gallery/pap...telescope.html
Maybe you could build a bunch and make a large telescope array to keep in contact with those ET craft. 
__________________
~Doug~
AC010505 EAMUS CATULI! Audere est Facere THFC 19**-20** R.I.P. it up, Tear it up, Have a Ball
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