Got this for $20 on Black Friday at JC Penney's. They were normally... $45, I think. Three color combos offered: orange/yellow, purple/pink and blue/yellow.
Sound on speaker is not great at all. Lava lamp flow is weird on it's 2nd run and bubbly. For $20, not bad, for it's retail price, I'd pass.
More info here: http://www.jcpenney.com/sharper-image-lava-lamp-speaker/prod.jump?ppId=pp5006220420