Above cut and
pasted from first link, qty 20 up to like a 3x3 board is
$11 each. Makes me itch to do some project.
But what fits on a 3x3 board that is worth duplicating?
Even the good old flip chips from DEC are 2.5 x 5 inches.
Hmmm, 2x4.5 board might fit a 10/100 ethernet card for a apple II, or maybe
a PIC, or actually I was thinking something usefull like a headphone amp,
or maybe some panel interface thing, blinkinlites or maybe a little LCD
display.