If you've been to a JSConf in the last few years, or almost anything JavaScript related, really, you've probably seen this shiny yellow sticker. At last, there's a way to get it aside from pestering Chris Williams for the stash he's always got in his bag ;) (2"x2")
A percentage of profits from the sale of JS merchandise have been used to fund continued support of the JSConf folks.
Note: User Group packages are 50 and 100 pieces, not packages.