thegrav wrote:
How are you at sculpting/painting? I would imagine with scuply premo you could carve/sculpt water columns then just paint them to look like water. If you want it to be clear...

Vacuum form? Find your local maker space and see if they have a vacuum table?

 Bobaram wrote:
Vacuuform tables are basically a way to make quick molds of stuff. At it's simplest you place something you want to make a mold of on top of a table with holes in it, there's a vacuum attached to said table. You then clam a piece of hot plastic,not melted, over it and turn the vacuum on. That draws the plastic down around whatever you're molding and creates a plastic form when it cools. There are quite literally hundreds of tutorials on google as to how to make them.

As for water effects, Slavetopainting has some nice terrain stuff imo.

http://www.slavetopainting.com/products/basing-terrain-conversions/basing/basing-water-effects/

you could try hot glue guns or something, just hang the base upside down so the hot glue hangs instead of lumping, then glue what you want on top of the little spike.

Usually with sculpting water you'll either have to add consecutive layers over and over or learn how to use putty to create the pillar you're looking for then paint it like it's water.