"Modern egg master Franc Grom creates eggs which give Ferberge a run for his money. Grom uses a small electric drill to create approximately 2,500 to 3,500 holes in each eggshell. Inspired by traditional Slovenian designs, he has been known to pierce a shell as many as 17,000 times. They’re so fragile and beautiful. Imagine the patience!" from Rag N Bone It takes a week for one egg. Here is Grom working: I think its amazing!