Insane milk foamer

===Update 4.10.2020===

Shaft coupling was too weak so I added a shaft coupler and glued both sides in.


Had lots of those useless milk-foamers and each of them satisfied my expectations: they are all too weak and therefore useless. Except the case milk foaming is someones hobby - this has to be done faster!
So here we go - 12V motor from an old toy-boat, a 9 volt battery and a switch. The only surviving part from the old foamer is the quirl-thing I glued on the motor-axle.
Well, I've to foam carefully, but it's as powerful as I hoped :-) .

https://www.youtube.com/watch?v=-U2iG6OwGPI