Ok...I'm tired of putting it off. I wanna make a diaper bag using the bow tuck pattern. I don't have any fusible fleece, but I do have batting and spray baste. I have the poly batting in a bag and I have warm and natural. Which would be best to use? Or would you recommend not using this method at all? The baby shower is next weekend and I will not be able to purchase fusible fleece before then, nor have the time to work on the bag. Any advise?