Yeah man. It's def. possible to get clones still VERY late into flowering. Like mygirls said above, he took cuttings at 6 weeks, and had a 90% success rate. Jiffy pellets and clonex sollution is my personal preference. I'm taking clones tonight, 4 weeks into flower. I don't feel like ordering more seeds, so this is a split second decision.
I've read a lot of places if the cuttings you take DO have buds on them, it would be more beneficial for the plant if you cut off what bud has formed. It will stop putting energy into making buds, and try and focus on rooting itself.