I opened all mine that didn't light in the package and most of them do not work unless I press hard, twist, manipulate and it ended up just hurting my fingers. Only two of them stuck together work. All others are malfunctional I think because of the contacts. I couldn't bend them enough to touch the batteries and the sticky stuff also pulled the connectors out. I threw all those out. Made me feel bad. And I wondered if all the silver ones had lead paint on them since they're from China. No I'm not racist, I'm chinese!
First fling: The Infamous THINGFLING Mystery Box (x6)
2nd fling: The Infamous THINGFLING Mystery Box (x3)
3rd fling: 2 Pack of USB 2.0 Auto Sharing Switches (x3)
4th fling: Set of 4 - 2.5 mm headsets
5th fling: 24 pack Cool Downz (x3)
6th fling: Leftover Mystery Box Part IV