I found this blue cross at an antique store in Tennessee. It does appear to be handmade and it's just really fun!
Blue cross comes on an antique brass ball chain measuring about 18" long.
Designs with vintage jewelry accents:
Please note that the vintage brooches I use are VINTAGE or THRIFTED. I make every effort to ensure the pieces I use are free from missing stones, loose stones, etc., but I am unable to make any guarantees regarding the reliability of the jewelry given their age and prior use.