Save a few bucks, and do yourself and the landfill a favor. Save that yogurt cup. Instead of spending your hard earned cash on small single plant sized pots, just make a simple alteration and you are good to go.
You could also use a pencil type soldering iron to melt the holes and be able to contain the fumes better. And you could do it outdoors. I use a soldering iron to melt holes in cups all the time when I make my sparkleballs (see my picture). http://www.tecratools.com/prod...
I'm not recommending this site, just showing what kind of soldering iron I am talking about. You can find cheaper ones a lot of places.
