Plant Unit Needs

We have started a two week long plant unit. I wanted to do a fun activity with the kids. I am in need of some extra supplies before the week is over:

-Soil

-Grass seed

-Seeds with a speedy germination

-Two pairs of panty hose (they don't have to be new.)

2 or 3 cheap plants (for experiment purposes...so some will die). Anything helps...thanks!