This is a cute and easy Spring/Summer collage project that's great for reinforcing cutting, folding and pasting skills with younger students. I've done this project with Grades K-2.
Simply take colored cupcake liners (2-3 per flower) and fold them as if you were cutting a snowflake: in half once, then again, then again if you wish. Cut the edges in a decorative manner (fringes, wavy line, scalloped, etc), unfold and stack them together with a dab of glue.
Glue decorative items in the middle (beads, buttons, pom-poms, glitter, etc).
Take a sheet of colored paper (I used blue for the sky) and paint on some green stems with leaves.
Glue your cupcake flower on top.
For the grass, I had pre-cut wide strips of scrap green paper. Have kids cut a grass edge (I demonstrate how to snip large triangles off the top); they could also cut a fringe, whatever you want. Glue stick this grass on the bottom of the page and ruffle the grass a bit for a bit of a 3-D look.
These could easily be embellished further: have the kids paint/draw in a sun, rainbow, make bugs and glue them in the grass, etc. etc.