You can get a FREE Lightbulb keychain from NoMoreRack. Just pay $2 shipping.
There is also a Nintendo DS battery extender for $10 + $2 shipping.
I’m guessing you will not get these before Christmas.
Want to save loads of money this holiday season? Find the latest holiday deals I’ve posted about. You can also check out the Hot Holiday deals, Giveaways, and my Holiday Gift Guide. These pages are being updated often.