I'm reminded of Blackadder Back & Forth, in which the heros travel from the present day back to Elizabeth the first's court.

They show the court a series of things modern people consider important technology, the Elizabethans think the inventions are ridiculous and irrelevant and immediately sentence the heros to death. They redeem themselves with a roll of lifesavers*, which Elizabethan people consider a miracle.

*a cheap chalky mint candy, popular in the 90s, 95% pure sugar.