For happiny, bonsly, and magby.
Make a Female Sudowoodo hold a Rock Incense to get a Bonsly Egg
Make a Chansey hold a Luck Incense to get a Happiny Egg
Magby does not require an Incense to obtain via Egg. To get Magby via Egg, breed a Magmar with a Ditto to easily get a Magby Egg.