Cactuses shoot spikes that can hit both ground and air targets.
The top half of the flower is double sided. Glue both sides together before cutting out the petal edges to avoid doing extra work. To make attaching the arms and snout easier, attach the bottom on the main body last. For extra support, roll up some scrap paper and put it inside before sealing.
Place the spikes on the arms and scatter a few on the body. If you have trouble putting the spikes together, try using a pencil or pen tip to press the edges firmly together while the glue is still wet.