It's ironic that you say "sarcophagus" because the only reason Lenin was mummified was that King Tut's tomb had been discovered just before his death. Pravda had covered the discovery extensively and the Bolsheviks decided to capitalize on Tut's popularity by preserving Lenin's corpse -- in hilariously amateurish fashion, since mummification was not something regularly done in Russia.

Also, Stalin was hot when he was young, so we can fix him.

It's not that fancy though. I found it deeply unimpressive honestly.

Psh, Ho Chi Minh's is better