I doubt that moisture cure poly would yellow the holly Matt, and I think for silverware that's your only shot of getting it waterproof and durable enough to hold up. Some of it is clear, some of it has a slight amber/yellow quality to it like poly does. I guess CA would probably work ok too (I just can't make it look good on a turkey pot!). Laquer won't yellow it but it isn't a strong finish for turkey calls, let alone silverware!