[dxbydt]

Send me an empty box ? Why not send me a Google Glass. I'll put on the glass, look at the object I want to sell, and say "Glass, Sell!". It will then take a picture of the object, upload to cloud, run a few ML algos to figure out a competitive price point & vendor site ( ebay, amazon, niche ) & list my item on vendor with a auto-generated description ( standard summarization algos ). If it were smart enough, it would run a second price auction of the item on my behalf, perhaps flag bidder bots as well, and auto-tweet me when the item was sold. I'd walk out the door with the object & an unmanned Google Car would be waiting outside. Toss the object into the car & the amount gets credited to my Google Wallet. Fun times...

[eru]

If the item is small enough, the tacocopter could take it on its return journey.

[jmhain]

From watching their videos it looks like they're huge Apple fanboys. I doubt they'll ever support Google anything.