personally we have gifted some #bitcoin to our second godchild (when we were asked and accepted the first one we weren't into #btc yet) - but we went the easy route to just write down the 12 seed words and the private and pub-key and amount on a card (+a backup we kept sealed with us just for the worst case scenario the parents lose it)

a more appealing way would definitely be something like this: https://99bitcoins.com/bitcoin-wallet/paper/

but please please use the safe / offline route!