It's tough finding an original baby mobile. I looked around for a while and wasn't super happy with the options. I made Baby French Fry a homemade mobile above her changing pad to keep her entertained during diaper time, but I still wanted a simple one for her crib too.
I found a mobile arm and music box on Amazon and have been hand cutting out different designs seasonally to switch up the look. We've gone from rain clouds to tulips and are switching out to something summery soon.
She seems to enjoy her cozy time in her crib as she watches her mobile and gets gently lulled to sleep.