You can make a aeroponic cloner out of a bucket and a submersible fountain pump pretty cheap. I'm sure there are diy how to videos on the interwebs. Then you'll get 100% success.
All you need is.
Bucket w/lid.
2 inch net pots w/inserts.
2 inch hole saw.
Fountain or pond pump.
Pvc pipe and fittings
Aeroponic spray tips.
Drill bits and drill.