I'm thinking about casting some
I have an O'Day 25 as well. On my boat, one of the plastic nameplates is broken in half. The other one is in good shape basically, however the paint is all worn off. I've seriously thought about taking the whole one off, and making a cast of it, then pouring new ones out of two part epoxy. If you want, contact me off forum at hparsons@parsonsys.com, and I'll see what I can do.