My daughter just lost her first baby tooth. Because we are US citizens, the Tooth Fairy visits us. But in France and the Suisse-Romand area, it's "the Little Mouse" that exchanges coins for teeth. Frankly, that creeps me out.
We tend to give more in Swiss francs than we ever did in US dollars. We'd never give any of our children a $5 bill for a tooth, but when our son lost his tooth and the only coin we had on hand that night was a 5 franc piece, it didn't seem extravagant. Geneva's an expensive city, baby teeth included.