I'm a beginner to the game.  How do I get a Snowman or Festive Tree for my garden?

The trees haven’t been released just yet (any you see will have been in storage form years before) but the snowman you can click on the gift icon in your garden and buy for diamonds or alternatively if you have friends who play (via fb) they can send you them as gifts for free X

thank you Laura

You can use the self-gifting links I posted above :-)

Most important: they are not 'ready' you have to build them up!
Each Snowman starts out in your Garden as 3 simple snowballs,
stacked on top of each other in a classic snowman shape.
Your task is then to decorate him with some Eyes, a Nose, a Mouth, some Arms, some Buttons,
and a Hat – 6 different items in all.
These items are dropped by the Winter Seasonal Wildlife. Every 5th spotted of each type will drop an item for you. After you’ve completed a Snowman you will be able to attract the ‘Very Rare’ Polar Bear to your Garden.