2 minute job (and I'm new to this):
http://i-asm.com/Morrowind/hlaaluwspout.jpg (using standard textures - here you see AOF's excellent replacer)
http://i-asm.com/Morrowind/ex_hlaalu_waterspout_01.nif
Note that the Velothi door retex I did replaced the Velothi doorstrip texture with one that's properly rusty metal (and no rivets), which looks perfect on these grates - for some reason they used that on the metal grating bars instead of a separate texture. If you don't want to use the whole door retex, you can easily replace the reference in this NIF to a renamed copy of that texture and use that separately.