Making costumes can be a hefty amount of work and expense, so if you have excuse to reuse a costume or prop, you should take advantage of it. In fact, it can be fun to plan cosplay with that in mind. Start by making note of characters from your to-cosplay list that have similar elements — maybe they share a cape, or a prop, or a wig. Challenge yourself to maximize your efforts by making shared clothes and props for those characters.
Redditor Bqnonumbers did that with a couple of icy costumes. They dressed as both Mr. Freeze and Captain Cold. Both are comic book villains with a frigid weapon and blue-hued costume aspects. And Bqnonumbers did something unique for the prop replica: they loaded it with air freshener, which can be a nice addition to the crowded convention center floor.
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.