Sometimes you need a very small vacuum cleaner, usually to reach in tiny
little crevasses that you cannot reach with a conventional vacuum hose or
attachment. Take a plastic straw (I prefer the bendable type) and wrap some
modeling clay or Play-Doh around it in about a one and a half inch ball.
Stuff the straw and ball assembly on the end of a vacuum cleaner hose. To
help this makeshift attachment work, you may want to assist it by stroking
the dust and dirt near the straw tip with a small paint brush to loosen
I once had a Gottlieb wedge-head that had sat without a playfield glass in a
carpenter's shop and was drowning in sawdust. Without a mini-vacuum I would
never have been able to get the large relay bank clean!
If you have compressed air you can more easily and quickly blow out this
type of dust, but you run into the problem of just moving the dust to