This is chip randomiser app I created using the MIT App Inventor program. Download it to an android phone and install (you'll need to enable third-party apps).
It selects 10 random puzzle chips from the complete (third edition) set. It's fairly basic, but it allows you to select between base set, shadows expansion and/or promo chips. Also, the 'Balance chip values' option selects 3 low values, 4 medium, and 3 high value chips, in case you want to ensure a balanced bank.
Any feedback welcome!
(previously posted in the third edition forums)