SPACE GUN just begs for this..
I know it does - all the input circuitry and MP3 stuff and amplifiers work a treat but you need to find 12V DC and the thing that stopped me progressing it was the spiraling cost of it??? Several people who inquired and I mention a price LESS than the price in my earlier post had heart failure so I gave up on it.....the simple fact is short runs of anything like this require minimum size orders.
I am having the exact problem every day here in China - I wanted some table top hinges today for the Hankin tables - no problem, cheap as chips BUT minimum order size 5000 pieces (I need two per table).
I actually started on this project originally for arcade SS machines such as Gavins Space Gun......