Well thankee sir, I made these last year and I think they were Immortal figures but I c,ant be sure - must be the altzimers kicking in early I suppose. I remember I had some parts left over and it bothered me until I found some bits in the parts box to complete them.The bowstrings are made from sisal string teased out to single strands and secured with a product named NO MORE NAILS which can be bought in a tube and applied with a cocktail stick. My son is a builder and he tells me it will secure anything.