Get a hand fan remove Fan, add electrical connector with plastic stripped off. length of I think 2.5 mm wire. bend as illustrated.
Hardest bit is getting the balance right so it spins straight. If all else fails put the fan back on. I have also found a piece of straight sprue cut with the number indicator on the end jambed onto the hole works, but it is a bit fierce on small pots and can result in lots of spray.
P1030152_zpslrufhdkq by Mark Bradley, on Flickr
You will need pliers for the bending.
P1030151_zpsktyrffmt by Mark Bradley, on Flickr
