Come on, peeps... We should all know that ACLS and PALS and BLS and TNCC and two-day courses don't earn a spot with your professional credentials.
Personally, I like just MSN, RN on my badge. No, I wouldn't include my ASN or BSN, though I have those. I have ED certs (CEN, CPEN, and TCRN), and for those I might wear a pin. I also have my certified nurse educator (CNE), but that is more of an academic credential so that one isn't as relevant at my full-time job. (Definitely at my part-time teaching job, though.)
When I had been an ED RN (new nurse) for 10 months, I attempted and passed the CEN. I had that added to my badge, and my accomplishment inspired several of my ED's experienced but un-certified RNs to do the same. Our environment (plus clinical ladder) fostered this kind of behavior and pride. OP, if you are the first, be proud and inspire your peeps!