Crowd funding gifts... hmmm - tough case, I'd think. I can think of one case - when my nephew turned 10 years old, he asked for $20 cash instead of gifts. He wanted to save up enough for an iPad which was $500. He invited 22 other kids to his party, each of whom brought $20. When he combined that with the other money he'd saved, he was able to buy it.
The question is would the 22 other nine and ten year old boys have "crowd funded"? No, not a chance!
Not yet, I still don't have many users. Less than 100 at this point.