I am laughing so hard that I can barely type.
I propose a handshake *with both hands at the same time* starting with a circle made by the thumb and forefinger to symbolize the Holy Meatball, while at the same time waving/twining the third, fourth, and fifth fingers to symbolize the Noodly Appendages. (People might think you were signing/using Sign Language, but that is simply another instance of the Great FSM showing His/Her omnipresence! Now we know how Sign Language was inspired!)
The pasta is the life.
In Pastalidarity, NOOOD