Edit: or someone kidnapped the seller and took over his/her eBay account...
Yeah, sorry about your loss, really hope you get all that money back. I am not saying this seller is by any means innocent at all. Just seems odd when the seller went crazy all of a sudden.
I agree with another poster that the sending of frivolous items speaks of a crafty con-man. But shipping anything from China to the US is not cheap so he is spending quite a bit of cash to pull this off. And I cannot imagine in any circumstance that ebay/paypal would not rule this case in your favor (socks for lights? com'on) unless either 1. the seller has some trick up his sleeve to prevent paypal from rescinding the fund 2. Ebay being ebay.