I love to hand quilt, I've been at it for over 20 years. I have only used metal thimbles and I too have gotten little blood spots that I use my spit to remove. come on ladies, It is readily available and so easy, you can always get some water later and go over it but I've never had anyone even know I did it. I love my oval hoop to do my quilting. just remember to start in the middle and work evenly around out to the edge.It is adictive.