I don't think there is but it's not hard to make one.
I borrowed the textures from that addon you mentioned and made a funny "splatter" health addon quite some time back. Never released it or anything but I guess you could look at this.
You will need to open the .lua file and edit it yourself... I kind of went overboard with the number of "splats" before i just trashed it
Compare the commented sane HealthIntervals (6x) to currently insane active (100) lol
Edit:
I might have messed up when I coded that so it might create a new texture every time.. I don't remember, make sure you do not use it as it is!
Also included an image now.. Yes... bit insane with 100x textures (one per percent)
