These can be bought from Sojan the Sleepless in the gnome pirate camp of Iceclad Ocean. Also, Belix Misteyes in IO has "Skins of Slush Water" and "Pouch of Frozen Roots" strewn around his tent, as ground spawn, free for the taking.
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----- Henrian Illinoid - 80th Level Half Elf 4000AAs/Epic 1.5 Ranger of Tunare - The Rathe http://www.magelo.com/eq_view_profile.html?num=437223