In the spirit of constructing useful, service, robots, bordering on novelty, Marty was constructed with the idea in-mind, that robots can take mundane tasks and make them fun. This robot can be constructed from low cost materials, and in high volume, can be sold quite cheaply, as a novelty item.
Marty was initially designed as a simple balancing cart that can server drinks at a party or in a bar. However, as people react to his presence, they anthropomorphize this balancing robot, and he becomes the center of attention and conversation. The robot could be equipped with a beacon following system similar to the “Follow-Me” robot below, to follow a server around a bar or restaurant setting, or could just be a simple static cart for people to set their drinks on while socializing.