what do they do?

Never found a use for them. Toss them; I think they're worthless.

-Sazerac

<font color="gold">Yup, as Sazerac said, they're worthless. I dont know why they are placed in the game, but I assure you, there is no need of them. Just toss them away. ;) </font>

In ToB, there's a certain spot where you'll need one, but you find one right there anyway. So, again, the ones from SoA are useless....unless you wanted to put potting soil in them, plant some bulbs, and stand them in the window.....