Well you definitely need to go to Fantasyland Courtyard and check out the dark rides, which are now open.
You missed some Alice in wonderland items, and some peter pan items. (Most of which are still in the shop)...Let's see.. This month were were valentine's day items and themed crates/keys. Which yielded special recolored heart chairs when opened, and an enchanted rose. You missed spaceship magic, test track magic. And all the daily pins. (There was a new pin each day on sale for 500). Think that's about it. Sorry if it's not more specific.