littleBits remains one of the most versatile ways to interact with sound and to experiment with how to create synthesis. I’ve always really enjoyed playing with the littleBits synth kit and, slowly adding to my collection to start expanding and growing out what I can do.
In fact, I was talking to another littleBits user yesterday who likened littleBits to modular synthesis in terms of how addictive it can be. I’m not sure it’s quite as bad, and certainly not as expensive, although littleBits aren’t cheap, especially if you’re not in the US, although you can often get reasonable deals on eBay.
And whilst it isn’t entirely portable, it does run on batteries very well indeed.