I'm in a similar situation!! I'm in a block swap and I have ONE more block to finish but I need to get fabric for it. I have other things I *can* do ... but none of them are "speaking" to me today. I keep wandering into the sewing room, picking a project up and putting it down for lack of inspiration. All I can think of is the block for the swap that I want to complete - and the fabric is on it's way in the mail.
So instead I gave my dog a bath.