S1 IS - custom white balance usage suggestions?

[pianoplayer88key]

I was wondering if there's some way to intentionally get certain color casts in images as they are shot? For example, I was playing around with the WB on my Canon, and when I white-balanced against a bright red tablecloth and took a pic of myself, this was the result. :blah:



Any other suggestions on how to do effects with the CWB (or any other camera settings for that matter)?

Also I'm having trouble duplicating that color cast again. (the tablecloth has been put away btw (the one I WB'd that pic off of). Any suggestions on how to custom WB to get that color cast again?