This DIY air conditioner wins the award for the simplest and funniest way to make an overheated room cool. Just freeze two 2 Liter bottles of water and put them in front of a regular fan. There are already ICE versions of A/Cs like this available on the market, but none quite as homeade and quaint as this baby. I wonder if you stored frozen flavored drinks in the bottles (and added some holes in them) if you could turn this A/C into a fragrance emitter… I guess you would have to worry about bugs tho…

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