[G6Tanuki]

Speaking of blowing, my parents had a 'Vactric' cleaner when I was young. It came with a fitment to go on the hose which could be filled with mothballs, a vane assembly caused the mothballs to swirl round in the casing, causing little bits of mothballs to break off and come out the end

I don't remember it ever being used, nor do I recall the use of the similar blow attachment intended to apply DDT powder!!!