This Koch snowflake cupcake is the tastiest mathematical iteration ever. These lovely fondant fractals are made from edible dough rolled, cut to exacting detail and assembled on top of the cupcake of your choice. Warning: some manual dexterity required.
Link - Via RealityCarnival
The interesting thing about fractals like these is that they are emergent phenomena-- complex patterns that show up when a simple algorithm is iterated. We often think of mathematical iteration as something that only happens in computers, but as these examples show, there are a number of interesting certain cases where you can perform iteration with your hands as well.
Link - Via RealityCarnival