I've seen the word "cosplay" thrown around when people post pictures like the one above, but didn't really know what it was. Looking at the wikipedia entry, it seems like its a word meant to make "playing dress up" sound more cool:
Cosplay (コスプレ kosupure ), short for "costume play", is a type of performance art in which participants wear costumes and accessories to represent a specific character or idea from a work of fiction. Cosplayers often interact to create a subculture centered on role play. A broader use of the term cosplay applies to any costumed role play in venues apart from the stage, regardless of the cultural context.I'm sure a lot of people would look askance at it as being the epitome of geeky weirdness (even more so than painting toy soldiers) but I don't see how it's any different than investing hundreds of dollars and hours into "suping-up" a car. And it's definitely more productive than drinking one's face off. Just that cars and drinking is more socially acceptable. Seems like this stuff is becoming a bit more acceptable as geekiness becomes more mainstream.
At the end of the day, it's just plain impossible to say that there isn't something really cool about this:
It was made by Daniel Høgh (Boltshells) and Justina Šniukštaitė (Roses) over at Roses and Boltshells, who make custom props and cosplay accessories, and it certainly showcases their considerable skill. Apparently this thing is made of foam and cost about $2000 to make.