Very cool! Yeah Arduino is awesome to play around with and has so many possibilities. I used it as part of the rocket club I joined to build sensors for detecting altitude and radiation. Sadly I did fry a good 2 or 3 nanos by putting 400 volts directly through them.
My profile picture is of the Topaz forest puzzle that I just completed! Anyone wanna guess why I chose that puzzle? The signature is a very nice wallpaper I found on Reddit.
I got the Samsung Galaxy Buds 2 last year and really like them. They do have the rubber tips though. You could try the Sony LinkBuds, I heard they were pretty good.