This quirky Washington tradition has been around since Franklin Roosevelt. Does anyone know how many pens President Trump used signing executive actions on his inauguration day?

Turns out when a historic document is signed the 'pen' becomes a historic artifact. The pens are engraved and used as thank-you gifts to supporters of the signed legislation.

Most of the time these souvenir pens will end up on displayed in offices or museums. However, not all presidents played by the unwritten rules. President George W. Bush used only one pen when signing bills and he would then pocket it.

President Lyndon Johnson holds the record for using the most pens. Time says he used 75 pens when signing the Civil Rights Act of 1964. We wonder if President Trump will think this practice is too frivolous to continue.