A model a made a while back as a test and was requested to be turned into a metal pendant. Took me a while to adapt to this small size and design guidelines for steel.
Ears bend inward and intersect at tips to form a loop to use as a pendant, maybe keychain if steel is durable enough.
NOTE: There is an escape hole on the back not seen in renders, check Shapeways 3D view
Check out a 1.25inch version designed for Silver, Bronze and Brass materials.