If you feel tired of those squared PCB boards – try something new. Takumi Funada has developed really unique Arduino board. It is a heart shaped Arduino board with all Arduino pins available, but these aren’t shield compatible.
It is Atmega168/328p compatible single sided board. It doesn’t have any voltage regulators or USB to TTL converter. So you have to use your own external converter like one from Sparkfun. Despite this you can amaze everybody with this piece of art which actually can do serous job.