Use an old CD/DVD-ROM motor to make a 5-9V fan for well cooling stuff.
5V long life 9V well not sure...
Press impeller on to motor shaft don't bend the shaft!
Install motor and impeller assy into the housing and glue in place.
Cover can be glued on or screwed on with machine screws or to object.
0.1 for impeller 0.2 for rest
Print on glass.
Use your grannies hairspray.