Two teenagers have found an innovative way to make Christmas card writing less tedious. Sanjay and Arvind Seshan built a Lego robot to write Christmas cards for them.

The "Holiday Plott3r" was built by brothers 14-year-old Sanjay and 12-year-old Arvind using Lego Mindstorm, the brand's modular robotic platform. According to The Verge, the robot works by using two markers to draw Christmas cards dot-by-dot, complete with festive designs, particularly a Christmas tree and a snowflake. Once the designs are made, it signs the cards and dispenses an envelope for it to be stored.

Building assistants using Lego is not uncommon anymore. In the United Kingdom, a competition based on using Lego Mindstorm Robotics was launched to challenge the abilities of children, particularly nine to 16-year-olds. The initiative was meant to use the platform to help aid them develop strategic thinking, mathematical skills, along with programing, and control abilities.

But of course, children are not the only ones who can benefit from the Lego Mindstorm platform. Companies are using the platform to assess the ability of employees and job applicants to collaborate with team members.

Meanwhile, just about a month ago, a Lego Mindstorm factory was created to make tiny folded paper cubes. As the name implies, every moving part of the "Papercube" was built using Lego pieces. Gizmodo reported that the only materials that are Lego free were the class 4 lasers used to cut and score the paper sheets once they are loaded in and a safety glass that prevents users from being blinded in case they want to see how the machine operates from within.