I dont' do graphic design but I am a marketing man and i have an idea I would like to share. How about something with an hourglass that is emptied or the last few sands are falling in to the bottom. maybe you could overlay it on a cross.
Additional suggestsions : From Lisa : I liked the hourglass idea, but what about placing an hourglass inside the"O" in HOTT? Added 10/13/05