The Arduino GRANDE is a fully functional Arduino that is about six times larger than real life. These are the laser cutter plans for making a comically large, functioning Arduino for demonstration, comedy, and educational purposes. I built the GRANDE for 2012 Bay Area Maker Faire.
John has posted lots of great pictures documenting the build process as well.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.