Strings: A slender cord or thick thread used for binding, tying or playing. Have you got strings?
I really couldn't be bothered getting the old violin down from the loft but didn't know what else we had so thought I might have to miss this only until I was taking a picture of my card below and looked up and saw this plaque we have got with all different knots in it.
So here is my take on the prompt - with only minutes to go - sheesh, nothing like the last minute!!