Personally I find the whole concept a bit tacky and distasteful.

Why on earth would you expect to be given a material reward for bringing a little soul into the world.

Carrying a child and giving birth isn't a job which requires reward or payment. It is a blessing and a privilege. Surely it is reward enough in itself.
Wasn't intending to offend anyone by asking. I was just curious because my SIL got them both times from my Brother, My Mum had never heard of the idea.

I am not personally fussed either way if he was to give me one, but i would like to give him a gift as a thank you for all he has done to help out and his support for me. I think its a special occasion for him and sometimes the dad's get forgotten.

I feel any gift given out of obligation is a load of rubbish. But its nice to hear how everyone is different

If a DH wants to give his wife something for bringing his child into the world i think thats nice too.