That's exactly how I feel with a couple of different necklaces that I'm working on. I want to be finished with them but I know I need to make a matching clasp. Instead of just getting down to business I keep looking at some of my ready made clasps, thinking there has to be one that will work. There isn't. I know what has to be done and now I just need to do it.
Often, I feel that I need to design a piece of clothing to be worn with some of my pieces. Like that is going to happen.
Actually it did once, back in college when I designed a body ornament using silver, ebony and a very large agate. I did make a floor length velvet dress in a color that picked up one of the colors in the agate. Didn't have anywhere to wear such an outfit though. (Still don't.)