for a forum game? sure, as long as you credit me.

porcle!, they are colored in photoshop. the easiest way Ive found to do it is make the picture itself the background layer, desaturate it so its only black and white, play with the brightness/contrast (actually the levels, but its a little more complicated) then make a new layer on top set to "multiply" and color on that layer.

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A cactolith is a quasihorizontal chonolith composed of anastomosing ductoliths whose distal ends curl like a harpolith, thin like a sphenolith, or bulge discordantly like an akmolith or ethmolith.