First off this is not about anybody except my boyfriend, ok now the question, my boyfriend builds models he loves it, he wires them, puts brake lines on, just trys to make the model to look real, so i asked him why do you do all that work on wiring , making sure you have overspray on the frame and floor but you dont put the obvious thing on the model, and thats a valve stem and he says nobody does, so my question is, because i dont do it eather, lol, i want to start putting them on my models, to prove a point to him. What could i use for a valve stem, anybody got an idea, thank you