+1 little fish.
If you really want lots and lots of pots, culture them like culturing rotifer. Have a separate tank and put some pots in there. And feed them phytoplankton and keep the water green. Within a week, you'll have tons of them swimming in the water and lot of them that have eggs will stay on the glass.
If you want to keep the water green longer and don't have to feed as much phyto, have an CF light bulb shinning on it just an inch above the water. The phyto will multipler pretty well as well.
This is a 10 days old tank with only a few copepods to seed the culture.
[ame=http://www.youtube.com/watch?v=vDVEYFrGteo]Harpacticoid Copepods on Rearing Tank Wall‏ - YouTube[/ame]