If you live in a sunny area where it doesn’t rain much, then you can consider using cardboard for your costumes. It’s sturdy, somewhat flexible, and inexpensive — especially if you’ve moved anytime recently. EVA foam or craft foam is a more durable option, but if you’re okay with something more temporary, why not cardboard? Showa-Note even sells sets in red and black if you don’t want to invest any time into the project. Their samurai suits are about $28. That’s not a bad price to pay even if you only want to use the suit as a template for a longer-lasting set of armor. The armor comes in sizes for adults and children, and you can learn more about it at Showa-Note’s website.
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.