[funman1]

Can a DIY wave maker be built cheaper than you can buy them?
I was looking at building my own 6 channel from:

(1) BS1 Chip $30
(6) Solid State Relays $9 each or $54 for the project
(6) Transistors to control the relays $1 each or $6 FTP
(6) Pull down resistors cheap $0
(3) Plugs $3 each or $9 FTP
(1) 5VDC Power Supply $10
(1) Enclosure to put it all in $10

So all in all it's like 30+54+6+9+10+10 = $119
And that's assuming my time is FREE

Anyone know a way to make them cheaper?
I know I could ditch the BS chip in favor of a Microprocessor but then I'd have to buy the programing software and hardware so...