I got her this one in 14 inches:
She wanted a cheap $20 one from Walmart. I am not going to Walmart, so I think this one will fit the bill. She has an electric stove, so I got her a flat bottom one.
Whew! And I think my Christmas shopping is done! Now I gotta go send out those flippin' Christmas cards so they'll get there by January. Maybe I'll do them tomorrow and see if the PO really does deliver throw snow and rain.
Thank you again, everyone!