A device that fits over your car's exhaust pipe, with a rotating bubble disc that picks up solution from a reservoir as it goes around. The disc has built-in propeller fins so its rotation is powered by the exhaust. In case the exhaust pressure is too high to reliably blow bubbles, a vent could be used to bleed off part of the pressure to power the whole thing.

The faster your engine is turning, the more bubbles it makes!
-- ytk, Apr 30 2012

Bubbling_20Turn_20Signals another "car makes bubbles" idea [xenzag, Apr 30 2012]

hehe- kids have them! http://originalbigw...us/BubbleMower.html
[xandram, May 01 2012]

Excellent! [+]
-- MaxwellBuchanan, Apr 30 2012


Neighborhood children could run into the road and pop the bubbles!
-- DIYMatt, Apr 30 2012


Distracts chasing dogs as well. I'm having a hard time seeing a downside with this one... unless I'm the guy behind you that's run out of washer fluid.
-- 2 fries shy of a happy meal, Apr 30 2012


Bubble solution could probably be cut with washer fluid. You could be doing someone a favor.

My first Jeep had a broken tube on the rear wiper that sprayed fluid directly backwards; I put a small sign in the rear window that said "honk for free carwash."

[+]
-- Alterother, Apr 30 2012


Hah! We used to point the nozzle on the windscreen washers sideways. This was in the days before car airconditioning was popular and people drove with windows down.
-- UnaBubba, Apr 30 2012


//My first Jeep had a... rear wiper //

Did you find it difficult to drive when it was wiping your rear?
-- rcarty, May 01 2012


Sorry [rcarty] I have to use that one....
-- 4whom, May 01 2012


Excellent! [+]
-- Grogster, May 01 2012


For some reason this sounds familiar...but here you go. [+]
-- xandram, May 01 2012


//Did you find it difficult to drive when it was wiping your rear? //

Unless it was an emergency, I'd find a place to pull over.
-- Alterother, May 01 2012


Ewwww... A bubble full of car fumes. Yecch....
-- not_only_but_also, May 02 2012


Delightful +
-- blissmiss, May 02 2012


Nice - these bubbles should rise pretty fast, being full of exhaust gases which are warmer than the ambient air. Thus, the exhaust gases will get carried up above the stream of traffic rather than mingling with and being cooled by the surrounding air where they would be inhaled by motorists, pedestrians and cyclists.
-- hippo, May 02 2012



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