Plant Help Needed

[petunia100]

Hi guys! I am science coordinator for a small private school and my first and second graders are doing a unit on observing a pond. I'm trying to avoid using the kit because for some reason they give two tupperware containers and a coupon for an order that sends 25 platies at once! Go figure! Anyways I'm setting it up myself so we avoid utter disaster but I'm looking for some plants, I need anacharis or an anacharis like plant and duckweed. I'd be happy to pay for shipping if someone would like to get rid of these plants! I need them as soon as possible so I can my students going.