I love love love this one! It's probably my favorite one, but it looks like it can only have 2 initials. That's fine for me right now, but when I have baby #3 one day, I'll have to find something else! Although, here's another Etsy seller who has one with 3, they just don't have the initials? (Mama Bird & Babies)
You can choose your chain, your charms, your letters, everything! I think this could be really cute. When I price mine, it's about $136 for a silver one and $160 for a gold one. So this can be expensive! But it's nice picking all the different parts and putting it together.