Microsoft snuggie with LEDs, for some unfathomable reason. Got it at a hackathon. Never got any other swag quite like it.
FB mobile charger
Dildo
Was that from SpaceX? That was just a model rocket, you weren't supposed to put it up in there...
Power bank
Surface at MS Build
Cookies and unlimited water
I like the trend of colorful socks being given out. That way I can wear that company's socks when I go interview with them.
Wireless Bluetooth headphones from Pendo