I am looking to do something like this as a Christmas gift for my son. However, this looks pretty labor-intensive (300 bodge wires!).

I have dabbled with arduino in the past but I am no expert with hardware.

Does anyone have suggestions of cool projects similar to this? Toy-like LED things :)

Or even a website I could browse to find similar projects (like Instructables maybe)?

Strings or panels of addressible LEDs would be a good place to start. Adafruit brands these as "neopixels" but the specific LED most of them use is a "WS2812", "WS2812B", or "WS2813".

With these you have a single data line from a microcontroller to control the LEDs, and there are libraries to help you do that.

I've lit some up and fiddled with them and they're pretty cool, but I haven't come up with anything more serious to use them on yet. RGB lights on stuff for the sake of it isn't my aesthetic. But maybe a clock and weather forecast station with animated rain effects or something.

Lots of info here: https://learn.adafruit.com/adafruit-neopixel-uberguide

https://www.learnrobotics.org/blog/neopixel-projects-ridicul...

WLED is also fantastic if you are using WS/APA/STK style addressable LEDs. You just need a dirt cheap ESP32/8266 and you get a wifi connected lamp with a lovely web ui, cool animations, android app, timers, home automation integrations etc etc.

https://github.com/Aircoookie/WLED