Here is a link to "I. M. Chip Blue", the fifth in my series of Enigma Gadgets. Like the others, it's based on the Arudino but this and uses the Quadravox QV300 speech module. The QV300 is programmed from the factory to speak 240 common technical terms including units of measure, numbers and colors. I. M. Chip Blue also contains a Memsic 2125 accelerometer. I have programmed it the device to speak nonsensical sentences based on a set of rules. The rules vary depending on the way the device is oriented. There's some video on the page.
I almost made a project just like this, except with an SD card of phrases on an Arduino Wave Shield. The phrases would be more like snoring, waking, pleading, screaming and puking, depending on the "mood" which is governed by how you ignore, tilt, invert, drop, thump or shake it.
You should sell some of those cases. I looked through each of your projects, and they are really very sharp looking. I didn't see a price on the milling machine, but you should recoup some of the price by selling commissioned cases.
Thanks for the comments. I would love to make more of the cases but right now with my level of experience, etc. it takes quite a while to make them. I am using a lot of acrylic sections and the sections take about 4 hours each to cut because the material tends to melt. Each box has between about 5 and 10 sections so it takes a long time to mill one box. Plywood and PVC are faster.