Created a Phoniebox for my 2 year old kid for listening to music.
Program the box to play a song, webradio, podcast or spotify after your liking. Just scan a RFID chip and get the box to play whatever you like.
See video or http://phoniebox.de/ for more information.
All programming goes to http://phoniebox.de/ i only designed and printet the casing.
For Coding: https://github.com/MiczFlor/RPi-Jukebox-RFID/wiki/INSTALL-stretch
For the RFID chips i printet these in to different colors:
https://www.thingiverse.com/thing:4580990
Shopping lists:
Neuftech USB RFID ID Card Reader
Trust Leto 2.0 USB Speaker Set
RASPBERRY PI 3 MODEL B+
RASPBERRY PI powersupply
Micro SD card (at least 8gb depending on how much music you want on it)
https://my.aliexpress.com/wishlist/shared.htm?groupId=1000000017399892
Glue gun (or something similar)
Video for how the box is working:
For better sound quality you could add a rpi hifiberry or usb soundcard but i think its good enough without for the kids.