If you would like to build one of these for yourself here is the breadboard layout

You will need to burn the arduino bootloader onto the atmega328 so that you can upload the sketch from my github HERE. You are free to use what you want from this so if you don't want the speaker or as many buttons just change the circut to suit.

If you would like to make my project as it is you can order the PCB off of oshpark HERE the PCB is $17, All the gerbers and design files can be found on my github HERE too. The enclosure can be order off ebay HERE (not sure how long this link will last tho)

Then all you need to do is populate the board and cram it all into the enclosure after cutting the nessasery holes out