Searching youtube and found this pretty cool!

Surf Cannon - YouTube (http://www.youtube.com/watch?v=-6tB0R0XY0k&feature=related)

cool, you could probabaly use a potato gun to do something similar

But the fish are in the rocks... (With that you could get to the Vineyard/Cutty/Block without paying the ferry fee!!!!)

Why not just cast it?

Easier than yak casting the only way I would buy one is if I could have it mounted in the bed of my truck with multiple barrels. That you could aim and adjust the trajectory with hydraulics.
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Easier than yak casting the only way I would buy one is if I could have it mounted in the bed of my truck with multiple barrels. That you could aim and adjust the trajectory with hydraulics.
Posted from my iPhone/Mobile device

trailer size for the canal, hang on the access road and punch it

trailer size for the canal, hang on the access road and punch it

5th Wheel Clambrella SAM launcher?
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trailer size for the canal, hang on the access road and punch it
Fun for the whole family
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Fun for the whole family
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Send a child skishin!!

Distance capability for those contraptions is wildly exaggerated.

Logistics are a pain . . . You need to keep the bait/sinker 'cartridge' frozen solid so you either need a freezer or dry ice for fishing a tide.

Bait choices are limited to what you put up earlier in the freezer . . . How many do you bring and waste if they thaw out even a little bit?

For what they cost you could buy a high performance distance fishing set up and exceed what that Rube Goldberg can do (with practice of course).