Found! El Maiz has "McCormick Extracto Liquido de Vainilla." Yea!
I briefly considered making my own - here are instructions.
According to Jack McNulty of laughinglemon.ch, the Swiss use vanilla sugar instead of vanilla extract because vanilla sugar provides a stronger vanilla flavor. Just substitute a small amount (5-10%) of the sugar in your recipe with vanilla sugar. You can make vanilla sugar but putting a split vanilla bean in a container with powdered sugar. Periodically replenish the sugar and vanilla bean.