How i think Soviet Leaders would have liked Big Mouth Billy Bass (assuming it was in its current form during their tenure):

Lenin: Bemused, slightly curious, but likely left in a guest room to entertain guests.

Stalin: uninterested after the first use, would rather it play western movie music.

Khruschev: Big fan, would show it to everyone the moment they walked into his office (including regular visitors, much to their chagrin).

Brezhnev: has 12.

Andropov: Not a fan, finds it annoying and likely throws it in the trash as soon as he can find one.

Chernenko: Never got the chance to be shown one.

Gorbachev: had one installed in his private Pizza Hut booth.