Flower mantids are awesome! Put some colorful stuff in their enclosures (diff colors in each enclosure) and maybe they'll change colors. Mine did. I had a purple wandering jew plant in one enclosure and all green plants in the other and the mantids adopted camo colors accordingly. I never did find any yellow leaved plants I wanted to see if the 3rd flower mantid could adopt a yellowish color.
These things almost look like little dogs. That's crazy. Very creepy - such intelligent insects, hunting like big cats or something.