I love the endless possibilities with the new "Sprinkles of Life" stamp set. Those scoops of ice cream can turn instantly into fluffy little clouds, and there are two additional designs in the same shape to make a tree top, either of spring flowers or summer foliage. This set is going to get A LOT of use!
If you are not good at making banners with paper snips, the Banner Triple Punch is going to be a lifesaver. It makes perfect banners is three different widths, and any length you like.