Created this quick model in TinkerCAD (https://www.tinkercad.com/things/e1pYCpXFhZI?sharecode=lvPPmsZ2L8e7bQyXKA8LFc9Lp5e1G4_B_xbgmcoaIQ8) to hot glue onto some salt dough ornaments we made with the kids but forgot to punch a hanging hole in.

There are conical indents in the surface to help the hot glue really grab hold.