hah! I've done that, on a plant that got infested at like week eight. attached a bic pen with the ink part out of it, onto the vacuum attachment and used that.
Didn't work that great, kept sucking the leaves and making a shredded mess of it all.
I don't recommend it
I was so pissed, one thing that does work well to at least get a little revenge on them, after you harvest, all the mites migrate up the stem to look for food, and what I did was smear a bunch of sticky plant goo (forget what it was called) on the stems so you have a big glob of mites that you can happily light on fire or flush down the toilet or personally execute each and every mite with a tiny noose.... I took great joy in lighting their happy little community glob with my lighter,
muahahaha
yeah I got issues