Culture Rolls

The Culture Roll is one of our groups favourite, and regularly used, homebrew mechanics.

Whenever a player wants to introduce something that revolves around a culture reference in the modern world, the DM makes a culture roll, and informs the party of the outcome. From that point on the cultural reference is valid and in lore within our setting.

Detail
The dice rolled are percentile, a roll must be of 75 or higher for any semblance of the real world reference to have an equivalent in the Forgotten Realms.

From a result of 75-100 the DM concocts a Dungeons & Dragons compatible rendition. The higher the score, the closer the similarities to the original are.

Examples
When, mid-combat, Locke wanted to mimic someone whistling 'Ring of Fire' in response to one of Hymn's spells, the situation called for a Culture Roll, scoring 98. The result was Juan Cash, and Locke proceeded to mimic away.

A score in the low-eighties for reference to Pinnochio gave us Night of the Living Toys, and when an attempt to belittle Hymn's awareness and perception by reference to Jon Snow scored even lower, the Faerun Lore equivalent was to call her Hapless Rupert.