You probably noticed by now that our friends at Niku-Mansei has a papercraft model for the various seasons, this one is their spring Festival set. The papercrafts includes three symbols for spring (haru), the first being a cut-out cherry blossom (sakura) tree with stage and background - April and May are the months when people go out to view and appreciate the blossoms, it is called Ohanami (cherry blossom viewing).
Then we've got a papercraft spring latern, your typical Japanese lantern (chochin) adorned with flowery colors all over.
And finally a papercraft backpack, signifying the start of the school year, which is usually in April. If you're interested in learning more about this, check out these books on Japanese Culture, before downloading the goods below.