Lambency diffuser on 430EX
Like most lighting modifiers, once the basic design is out you get cheap Chinese copies made extremely soon. Gary Fong's Lightsphere is a $50 piece (ex S&H) of plastic that is basically a bigger Omnibounce. This Lambency diff is the DealExtreme version which costs... much less.
Here it's strapped to my Canon 430EX on a CTR-301 trigger. Unlike the previous DX model this Lambency only came with the white lid; there's also a gold/amber lid for warmer light but apparently it doesn't come with this model.