go get some rooting powder, a razor blade, a cooler with a removable lid, some rockwool cubes, and some saran wrap.
you should take cuttings from all 3 of your plant's. you will soak your rockwool cubes in some water p.h.ed at 5.5. soak em overnight. get a glass of water, your razor blade and your rooting powder, take cuttings from wherever you want on the plant 6-8 inches long and just below a node (half inch). cut on a 45 degree angle. cut the node off that u just cut below (on a 45 as well) dip the cut end into the glass of water for a second, then dip the wet end into the rooting powder up to that node you cut off. then stick the cutting into the rockwool.
place all the cuttings into your cooler, spray the walls (not the rockwool) to keep it humid. put the saran wrap over the top of the cooler. spray 1 -2 times/day for the first 4-5 days. you will have to start taking the saran wrap off after the 5th day. start slow, take it off for a few minutes/day. if you see wilting put it back on. after the clones stop wilting leave the saran off. I use a CFL for lighting. when you see roots put the clones in your medium.
some people like rooting gel better than powder
some people use heat mats to keep under the clones to help them root faster.
I've actually heard that it is ok to put your clones on 12/12 right away, but i've never done it myself.
things to remember:
Humidity 70%ish
Temp 70-80
light 24-7
it may take 2 weeks before you see roots. ive taken 3 weeks.