I haven't, but I've done something similar. I attached a Juicy Couture charm to a Coach clutch. I think the small charms would look cute on a dinky.
Aw that's really cute, I love that. I saw charms ate the Kate Spade outlet too, maybe some of those could work as a more affordable alternative. I'm not big into charm bracelets but I always see cute charms. I think they could be reworked into bag charms (whether on a dinky, clutch or even on a rogue with a hang tag chain). Maybe I'll experiment some in the future and report back.