The Gonster holds a jar of sparkle seeds. Sparkle seed referred to a unique variety of seed possessing extraordinary capabilities. A Gonster residing in the Twin Hills employed sparkle seeds as the energy source for the magic cap, a garment designed to counteract the effects of the Raich. When sprinkled onto the hat, the sparkle seeds would trigger the cap's inherent abilities, enabling it to transform the Raich into a tree by placing the cap upon its head.
On one occasion, the Ewoks named Teebo and Latara acquired sparkle seeds from the Gonster while facing the temporary return of the Raich. During their ultimate confrontation with the Raich, Teebo managed to deposit a cluster of these seeds onto the cap right before Wicket Wystri Warrick positioned it atop the Raich's head. The inclusion of the sparkle seeds successfully halted the Raich, reverting it to its previous harmless state as a tree.