To counter a planned boycott action, a number of organizations have designated Tuesday as Buy Israeli Goods day.If you live in a major metropolitan area in North America, this site has a list of local stores that carry Israeli goods. Ask the store manager specifically what he sells from Israel - and buy the goods you need!
Otherwise, you can go to one of the many sites that sell Israeli goods online, like Israeli Products, Shop in Israel or The Zionist Mall (run by the excellent The Vicious Babushka blog.)
Chanukah starts on Wednesday night, so get shopping and join the Buycott!