I might have found what you need. This is a video for doing a punch under
30.00, but the prices they paid were really really cheap so it may cost a
little more, but with 50.00 I think this is what you need. Take a look and let
me know how it works out :-)
http://www.youtube.com/watch?v=Gp8MX5Rhoag&list=PL7F4A77F09F7B2916&index=8
Mega cheers!
Paul