Yes, the Net is stuffed with stores that sell weird crap but even so, British retailer I Want One of Those ( www.iwantoneofthose.com/ ) deserves special mention. Whether it’s a kit of decorative plastic pieces that turn a potato into R2-D2 or Darth Vader, a radio-controlled pirate ship, a USB–powered humping-dog toy, or an inflatable sumo-wrestler suit, it’s likely that your shopping cart won’t remain “disappointingly empty” for long.