http://www.basspro.com/Berkley%C2%AE-Saltwater-Gulp!%C2%AE-Chum/product/97126/123364
Just throw $20 at Bass Pro Shop and buy some of this and see what happens.
I did a search on this a couple of years ago, whether other people on a public pier would have a problem with chum being put in the water. The answer was that if the others didn't mind it, it was probably OK. Since this is your pier, then why not give it a shot? I can't tell you whether it will work or not, but why not give it a shot.
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I'm always catch and release, except for cut bait.