Make a "block" with spray foam on your wooden block. Let it set until dry (about 24 hours).
Once ready, poke a hole into the top of the foam with your needlenose pliers. Dab some hot glue on the end of your faux air plant and insert it into the hole you just created.
Cut the smaller greenery stems off of the main stems. Add some hot glue to the bottom of each stem and insert it into the foam block throughout the design.Grab the orange and brown greenery and repeat the same process, spreading them throughout the green pieces.
Using the stem cutter, cut the stems of the white sunflower florals shorter and separate the flowers. Add hot glue to the individual stem ends and insert them into the foam throughout the design.
Repeat Step 4 again, this time inserting the large purple florals throughout the centerpiece.
Hot glue one end of a floral stake and insert it into the bottom of one of your pumpkins. Then insert the other end of the stake into the foam block where you see space for the pumpkin.Repeat the same process with your second pumpkin, inserting it into the area a little above your other pumpkin.
Take your 4” ribbon and make a very simple bow with 8” tails and (2) 5” loops. Wrap a white pipe cleaner through the middle and twist tightly to secure it in place. Insert the pipe cleaner ends into your foam block between your pumpkins.Make another identical bow and insert it into the other side of your design to balance it out.
Cut (4) 10” tails out of the same ribbon and insert them into the foam throughout the centerpiece.
Grab the Dahlia floral stems and cut them apart. Add a dab of hot glue to the ends and insert them into the foam throughout the design.
Insert the wispy greenery stems throughout the design for texture.
Hot glue faux moss anywhere you see exposed areas of foam to hide it. Adjust any florals or ribbons that need adjusting, dovetail the ribbon tails, and your purple and cream fall centerpiece is done!