these items are quite abundant in dungeons and towns. I know. you see them everywhere but when the time comes when you actually need one, your mind goes blank. Anyways you can buy mortar and pestles from some chemists and one location for a pipe (though they are plentiful) is straight south from Fort Dranlon down in the swamps. Shackles can be bought from various mundane shops and dungeons, and towls can be found in various buildings in towns