Pros: .
+ Good build quality, thick plastic, seems like it could survive falling to the floor
+ OK to drink from
+ Very bright light
+ Nice blue color on the light
+ Fast strobe-like blinking
+ Impressive in the dark
+ The light and battery in the bottom is hidden by fake crushed ice

Cons: .
- Utterly useless (but fun, as all the other stuff on DX!)

Other Thoughts: You should wash it before drinking from it. I'm not sure if it will survive a dishwasher. Fun to surprise people with (turn down the lightning and ask them if they can fill the glass with water for you, they will not suspect getting blazed with a bright blue strobe when they turn on the water!).

Bottomline: Really neat!

Pros: - Build Quality ( altought its not glass it has a good look )
- Blink strenght ( even with the lights on it works well )
- Perfect for little parties at home
- the eletronic part sounds well built, dont think it will stop working anytime soon
- god i write everything that i could possibly think about a cup but it wont get to 500 characters...................................................................................................................

Cons: - Cant see anything

Other Thoughts:

Bottomline: - Bought only 2 of those, going to buy some more to use on parties, when its dark its really cool

Pros: -Shot glass. Usefull for .. you know.. like drinking shots.. of .. stuff.
-Blinks. Brightly. VERY brightly. It should come with a warning:"Do not stare into shotglass while blinking, could cause instant hang-over"

Cons: VERY BRIGHT! Usefull for lighting up half a roomfull of your drunken friends.
Also, needs to be rinsed out after use, otherwise it just keeps on blinking.

Other Thoughts: Used it at several parties so far, and it's still as bright as ever. Doesn't look like you can pop it apart too easily to replace the battery, but since it's jsut a blinking LED, it should last for ages.

Bottomline: Buy one if you like:
-blinking lights
-drinking shots
-need to give a gift to someone that likes blinking lights, or drinking shots.

Pros: It's a cool gadget!!!
If filled completely,it makes a lot of blue light!! Perfect for house parties!!

Cons: It's made of plastic,but it seems to be quite resistant...
And is a short cup, a little bit smaller of how it could appear by photos...

Other Thoughts: ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Bottomline: Perfect for house parties!!!!!!!