Really easy to put together, just solder it up according to directions, took maybe 15 minutes total to put together in the project box. The box doesn’t come with the kit. This is what my voice sounds like modulated with a carrier wave at various frequencies between 100Hz and 400Hz.
It’s a Korg DS-8. Pretty fancy for the late 1980’s. I did some reading at it became clear that it needed a new backup battery installed. The voices were all weird or missing and the LCD was displaying garbage characters. A factory reset restored one piano voice, but in order to load new patches (voices, instruments, whatever) I needed to replace the battery. I downloaded the user manual and the service manual.
Joystick!
You basically remove all the screws and the bottom comes off. It has to hang over the edge of the table so the joystick doesn’t get stressed.
Korg.
A soldered in CR2032 3V lithium battery. 
FYI, you can’t solder tabs onto a lithium battery…these are spot welded. You can buy replacement batteries but I wanted to get it running ASAP.
I used my Hakko desoldering tool to remove the old battery.
While the desoldering tool was warm I removed the CR2032 coin cell holders from some dead PC motherboards I had laying around. Then I made some leads. 
Soldered in the holder. Now the next guy needing to replace the battery can just snap one in. You can buy the holders but why not recycle? 
The power cord was missing, I didn’t have an exact match so I made do with some large spade crimps that fit.
I had this USB MIDI cable on hand and tried to use it to upload some factory patches (Sysex files!) using both MidiOx and Bome’s SendSx. But it just wouldn’t work. I could play individual notes from the PC and I could retrieve data from the keyboard but it just wouldn’t work for sending data. Much Googling found some various forum threads that said that you need a better quality interface. 
In what was my second ever Craigslist purchase, I found a nice guy selling an M-Audio MIDISport 2x2
USB interface for about half of new price. A quick trip to town and I was in business. I forget which of the two programs I ended up using to upload the file, but it succeeded and I now have all the factory patches installed. 
Now if only I had some musical ability…
My friend Jeanine oversees the estate of Jerry Andrus, a famous magician who lived in Albany, Oregon. That's Jeanine above, showing off the nuts illusion. She came over a couple of months ago and dropped off some of Jerry's optical illusions for me to get running so that they can be displayed in the Albany Regional Museum during the month of May. I really wish I'd know about Jerry, he was a fantastic and influential magician and loved optical illusions. There are tons of videos of him on Youtube. Also The Jerry Andrus Story Part 1 and The Jerry Andrus Story Part 2 on Vimeo.
This is the Parabox. It is a single element that’s repeated in the revolving blocks illusion below. 
You can see the nature of this type of illusion.
Jerry’s calendar. This is what he used to keep track of appointments.
It has seen better days.
This video shows it, poorly. 
The block illusion was fairly complete.
One of the “blocks” underside.
The illusion.
They stick on the hub with magnets. The magnets are weak.
The power cord had to go.
As did the train transformer. Being a crazy hoarder I have a box of train transformers.
The angle adjustment for the motor was nifty.
“From 1 Rev 2 Sec to 1 Rev Ten Sec.”
I added a switch that could be actuated remotely (if they end up putting it in a case.)
For the starburst I needed to get a motor working. The junkbox produced a suitable one.
Some of the petals had broken loose from multiple repairs of epoxy and spot welding. I decided to use screws to hold the petals on.
I made a hub that connects it to the motor.
And bent up a little motor mount from sheet metal.
