Zoe's collar

Do you ever have that one piece, that for whatever reason, you are just not that happy with, and it is hard to actually get it completed?  I really enjoy doing peyote stitch pieces, except for Zoe's collar.  I started it last fall, then it got put aside and misplaced. I have recently found it and really need to get it completed. 
I think the issue with this piece is the actual beads I am using.  I purchased the beads for it at a LBS when I was on vacation, and am sure they are czech left overs (now know why the price was so good).  I tried culling, but was left with not enough of any one size/shape.  The problem is not the hole in these beads, it's the size and shape.  Some are wide and flat, some tall and narrow, some tall and wide, etc.  I considered just scraping it and redoing it with new beads.... but....   when I started it, my neices got to pick out flower colors, and 'helped' me work on it while I was visiting.  I'm not sure if they would even notice if it was a different collar, but I would know it was not the collar they had a hand in making.  (and Zoe is their dog!)
I feel guilty if I work on another piece, knowing this is still unfinished.  It is getting closer to being done, as I have set myself a deadline.  I have to have it completed by the end of the May long weekend.  I know I will definitely be happy when it is finally done.   I guess that is enough stalling for today.. lol