The Interdesign 84702 Suction Sink Center works pretty well. It gets the sponge off of the sinktop and allows air to get to it on 3 sides so the sponge doesn't start to stink. The only drawback is sometimes the suction cups come loose and one has to really dry the side of the sink to get it to adhere again. But you can't beat the price so it was a real bargain compared to the other sponge holders I saw.