Dont know what kind of emblems/ mascottes are sought after from your side of the Channel, but in France it seems the Lalique ones make a lot of money now. I'm not sure but it seems some are still produced. Some could be lighted, electricity provided by the dynamo, and you could even chose the color! Patented by Lalique.
Spirit of the Wind:
https://www.musee-lalique.com/boucho...ateur-victoire
You'll find other famous ones like The Archer or La Libellule (dragonfly).
https://www.musee-lalique.com/boucho...ande-libellule