I'm pretty sure I have drawn a robot for every single one of my moods. EG I drew this one on my birthday a few years ago.

Boxkit-Bot is celebrating being two years old. No one came to see it as Boxkit-Bots are often given as gifts for birthdays and quickly forgotten after initial assembly. Many shutdown after only a few weeks of power due to lack of charge, but there are some who take it upon themselves to create their own life, even though having no real abilities other than sentience makes this difficult.

From a game I worked on, nothing fancy but I think thats why I liked it, implied a lot more and let your brain play with details while still enforcing texture of material