Make a creative world.

Look for good addons/maps/texture packs.

Enchant your armour.

Build a house.

Spawn a wolf.

Dye his collar to blue.

Spawn another dog.

Dye her collar yellow. Spawn a horse.

Put diamond armour on the horse.

Put a saddle on the horse.

Make an aquarium (With guardians and squids in it.)

Plant a chest.

Put enchanted stuff in it.

Note: My favourite item in minecraft is probabally enchanted armour lol