Standard picture frame that plays a short piece of recorded music
I'm looking to attach some sort of audio playback device to the backside of a standard wall-hanging picture frame. I have the audio as a 30-second MP3 file and ideally someone would be able to walk up to the frame and push a button / flip a switch and the audio would play once through some sort of speaker - quality doesn't have to be great. Pushing the button again would make it play again.
I've never built anything like this before and I'm not really sure where to start. My first guess was maybe to take apart a music greeting card, but there's no button to play with that.
Anyone have any ideas of what I could do? Thanks.