Absinthe drippers, known as brouilles-absinthes in French, are a good alternative to absinthe spoons.

Pour a measure of absinthe into a glass, and rest your brouille on top. Fill it with ice, and a sugar cube if you desire, and pour in some fresh water. Enjoy the perfect flow of water from the hole in the underneath, enabling you to precisely control the louche of your absinthe.