I have been asked to make this cake.  I am concerned that making the Cthulhu "creature" out of fondant will be too heavy.  I considered making it out of RKT first.

What do you think?

ALooks like the legs resting on the bottom tier support must of the weight to me. The others can be reinforced with toothpicks thru the side off the cake and sugar glue or tylose glue.

Thank you for the fast response, I appreciate it.