This is a great 3d model from pinshape.com that I used to create myself custom Google home:
I used the Google AIY Voice kit to create the voice assistant and I am playing with various experiments with the recognizer and the AIY libraries. So far I have made a Google magic 8 ball and I am experimenting with building a conference call bot to dial I to Webex meetings for me.
I am using the Google AIY Voice kit with a Raspberry Pi 3. Here is the link to the project from Google:
I can't wait to get the vision kit to give my robot sight as well.