Where to find good 3x5 red trailer buoys for crab traps?

Recommendations?

My experience is that most of the hollow plastic ones start leaking and filling with water.

I was thinking the best might bey the brick red (aka "brown") ones from Promar (FL-35B), for instance used in the bridle for the Ambush hoops.  Possibly painted a more bright red.

But if you've got recommendations for decent ones, especially local sources in Sonoma County or the Bay Area

Outdoor Pro Shop in Rohnert Park had a good supply when I was there a few weeks ago...

Saw some recently at Bass Pro in SJ.

Thanks for the recommendations...