Actually, that's funny nobody came with that idea before, especially as advertising in already there in - at least male - restrooms with different variations (from the metal band sticker to the MBA event flyer).

So, here I give to you, through Springwise, the Coolertising, i.e. advertising space on office water coolers bottles.

Any thought on how refreshing this is? Comment!

Update: are Japanese once again trendsetters?