Here's my basic routine with water kefir grains:
1/3 Cup Water Kefir Grains
1/3 Cup Sugar (natural, raw or organic types)
4 Cups Water, divided
Supplies: Glass Vessel, Rubber Band, White Cloth (dishtowel or cotton fabric)
Dissolve the sugar in 1 cup boiling water. Add the remaining 3 cups water and allow to cool. When room temperature, add the kefir grains. Cover with cloth and a rubber band to secure. Allow to ferment 2 days.
Other easy ways is to flavor is to add whole pieces of fruit or 1/2 of a juiced lime or lemon. Grapefruit is another great flavor with the kefir. Depending on the size I add either 1/2 or 1/4 of the juiced fruit to each jar of keifer. I've added blackberries, cherries, oranges and herbs right to the jar for flavor as well. The fruit will loose it's color the longer it sits and the kefir will become stronger in flavor.
If I'm out of fruit I have added vanilla extract with great success. The formula I have read is 3 tsp to 2 quarts but I haven't measured. I add the kefer to the jar I will drink out of and give a little pour of vanilla. If I want to kick the vanilla up a bit I have added maraschino cherries and that is one of my favorites.
The jars I use to store the finished product and drink from are recycled kombucha, tea, or juice jars. Mason jars work as well. For my fermentation vessels I use glass carafes from thrift stores. I strain the grains out into a glass measuring cup then fill the jars individually with a funnel.