Caipirinha's are the national cocktail of Brazil.Their packaging is beautiful! And your point about the Kabuki brush being denser so the powder doesn't get lost is the best reason I've ever heard to get one. I've only ever used big fluffy brushes.Where did you buy them?
This particular one is by Tarte. I purchased mine at Sephora but you can also get it off of the Tarte website: http://tartecosmetics.com/tarte-item-airubuki-bamboo-powder-foundation-brush