Meritline has 5 Pieces Superbright LED Keychain Flashlight,Random Color for
$1.49
If these are the same I ordered previously, then they actually have a switch
so that they can stay on (this is mentioned in one of the reviews)
This is a clearance sale, no code that I know of
Link: http://www.meritline.com/15-pieces-led-keychain-flashlight-236---p-33830.aspx